Measuring Tools | McMaster-Carr

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1,000° F to 1,999.9° F

2,000° F to 2,999.9° F

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Color

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Shape

Graduation Marks Scale

22,878 Products

Measuring and Inspecting

Rulers

Horizontal, vertical, circumference, center-finding, and pica rulers

682 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

175 products

Caliper Tips

Install on your caliper to measure hard-to-reach areas or center-to-center distances

4 products

Caliper Depth Rods

Attach to your caliper to measure depth

1 product

Caliper Depth Base Attachments

Steady your caliper when measuring depth

5 products

Caliper Display Freeze Adapters

Hold the measurement displayed on your caliper after repositioning

1 product

Caliper Battery Covers

Protect the battery inside your caliper

8 products

Caliper Range Extenders

Expand your caliper's range to measure large items

7 products

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

264 products

Variance Indicator Hole Attachments

Fasten to variance indicators to measure inside holes and around obstructions

1 product

Variance Indicator Holders

Position and hold variance indicators in place for accurate readings

52 products

Variance Indicator Clamps

Secure and position indicators, arms, and other components on holders

61 products

Variance Indicator Lifting Cords

Lift the spindle on your variance indicator without touching the indicator

1 product

Variance Indicator Holder Fine-Adjustment Attachments

Install on Starrett variance indicator holders for precise control over positioning

1 product

Variance Indicator Backs

Replace the back on your variance indicator

21 products

Variance Indicator Depth Base Attachments

Insert the stem of your variance indicator to convert it into a depth gauge

7 products

Variance Indicator Caps

Cover and color-code the spindle on your variance indicator

1 product

Variance Indicator Lifting Levers

Replace the cap on your variance indicator to help lift the spindle

4 products

Variance Indicator Extension Rods

Lengthen the reach of your variance indicator

19 products

Variance Indicator Holder Bases

Thread a post into the hole to mount variance indicators

18 products

Variance Indicator Holder Posts

Connect holder bases to clamps to hold variance indicators

5 products

Variance Indicator Contact Point Adapters

Convert variance indicators to work with inch-size contact points or measure hard-to-reach spots

3 products

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

44 products

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

125 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

128 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

383 products

Tape Measures

Standard, long, center-finding, and flexible tape measures

241 products

Diameter Identifiers

Tighten the strap around rods, drill bits, and other small items to measure outer diameter

1 product

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

34 products

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

202 products

Outside Micrometer Stands

Hold micrometers to free your hands when measuring

3 products

Outside Micrometer Tips

Adapt your micrometer to measure curved and irregularly shaped objects, such as gear teeth and pipe

9 products

Tap and Drill Chart/Rulers

Reference tap and drill sizes, measure in inches, and convert to decimals with one tool

1 product

Laser Measurers

Point the laser to determine the distance to objects up to 700 yards away

6 products

Linear Scales

Measure and display the position of tools on machines, such as lathes, saws, and drill presses

17 products

Inside Hole Calipers

Measure hard-to-reach areas, such as internal grooves and slots

12 products

Pipe Size Chart/Rulers

Curl around pipe to gauge its size, measure its diameter, or mark lines

3 products

Depth Gauges

Reach into slots, counterbores, and other holes to measure depth

33 products

Depth Gauge Base Extensions

Increase the base width of your depth gauge to measure large holes

2 products

Height Gauges

Measure an object's height and mark workpieces for machining

32 products

Height Gauge Scribers

Replace the scriber on your Mitutoyo height gauge

3 products

Height Gauge Scriber Clamps

Replace the scriber clamp on your Mitutoyo height gauge

5 products

Height Gauge Calibrators

Ensure height gauges are accurate

3 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

7 products

Radius Gauges

Check convex and concave radii of tools, patterns, and dies

11 products

Drill Point Angle Gauges

Verify drill point angles after sharpening

1 product

Depth Micrometers

Measure slots, counterbores, and other holes more precisely than depth gauges

33 products

Thickness Gauges

Move the thumb lever to quickly check the thickness of flat stock, pipe, or tubing

41 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Inside Hole Micrometer Handles

Screw into your micrometer head to extend its reach for measuring deep holes

1 product

Inside Hole Micrometer Spacing Collars

Replace the collar on your micrometer to connect extension rods

1 product

Drill Bit Size Gauges

Match your drill bit to one of the holes to confirm its size

5 products

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

32 products

Wire, Rope, and Cord Length Measurers

Combine counters and reels to measure and wind wire, rope, cord, cable, or hose

21 products

Combination Square Blades

Connect to a combination square head to create a combination square

18 products

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

738 products

Plug Gauge Handles

Add both a go gauge and a no-go gauge to create a custom tool for checking hole diameters

28 products

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

1,027 products

Go/No-Go Outside Diameter Gauges

Snap on rods and shafts to check if their outside diameters are within tolerance

16 products

Flatness Gauges

Determine if the flatness of surface plates, lapping plates, and other surfaces is within tolerance

3 products

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

854 products

Angle Identifiers

Place the edges against fittings, dies, and other objects to quickly verify angles up to 45°

2 products

Metal Gauges

Press sheet metal or wire into the slots to determine their thickness or gauge size

3 products

Ring Gauge Holders

Keep ring gauges still to measure cylindrical parts or threads quickly and repeatedly

17 products

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

4 products

V-Belt Size Gauges

Insert your V-belt and pull the slide tight to determine its trade size

1 product

Angle Indicators

Align pipe and other equipment by measuring angle, level, or tilt

24 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

125 products

Cords for Measuring Tool Data Processors

Connect measuring tools with SPC output to a processor for uploading data

23 products

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

13 products

OSHA/ANSI Safety Gauges

Confirm gaps in bench grinders and machine guards meet OSHA and ANSI safety requirements

3 products

Calibration Rods

Check and set micrometers and other measuring tools

31 products

Sheave Gauges

Match your pulley or V-belt to one of the leaves to determine its size or wear

2 products

O-Ring Gauges

Identify the size of your O-ring

4 products

Chain Wear Gauges

Check if your chain is worn out

30 products

Paper Rolls for Measuring Tool Data Processors

Replace the paper roll in your measuring tool data processor

1 product

Measuring Tool Data Processors

Analyze and print data from measuring tools with SPC output

3 products

Micrometer Heads

Mount on jigs, fixtures, and machine tools to position equipment and measure length

24 products

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

3 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Map Distance Measuring Tools

Slide across maps and blueprints to measure distances

4 products

Micrometer Head Mounting Brackets

Mount a micrometer head to your jig or fixture to accurately position workpieces

16 products

Variance Indicator Contact Points

Attach to your variance indicator to make contact with the workpiece being measured

123 products

SPC Wireless Receivers

Connect to a computer to receive measurements from an SPC wireless transmitter

6 products

Machine Tool Indicator Contact Points

Replace the contact point on your machine tool indicator

3 products

Machine Tool Indicators

Find the exact edge of a workpiece without math or guesswork to quickly align your machining setup

6 products

Caliper Calibration Checkers

Test your caliper's accuracy

2 products

SPC Wireless Transmitters

Send data from measuring tools with SPC output to a wireless receiver

8 products

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

61 products

Inside/Outside Diameter Gauges

Mount your variance indicator to measure the diameter of rims, grooves, and shallow holes

2 products

Gauging Pastes

Cover your tank-level ruler and change color to indicate the level of water or gasoline in your tank

2 products

Measuring Wheels

Roll along surfaces to measure distance

49 products

Gear Tooth Gauges

Identify your gear's pressure angle, pitch, and module

4 products

Variance Indicator Collets

Hold the stem of plunger-style indicators for custom mounting jobs, such as creating depth gauges

4 products

Coordinate Measurement Machine Probes

Take 3D measurements of workpieces on your CMM or CNC machine to inspect for quality

24 products

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

2 products

Calibration Spheres

Test your CMM probe and stylus against a precise reference point before you start inspecting

2 products

Micrometer Speeder Knobs

Color code micrometers by calibration date, precision, or other criteria

4 products

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

3 products

Step Gauges

Check step height, gap width, and distance between slots to make sure machine and engine parts align

2 products

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

21 products

Countersink Gauges

Catch sizing errors in countersunk holes to keep fasteners from protruding and creating weak points

24 products

Grind Gauges

Measure how smoothly paint, coatings, and other mixtures are blended

4 products

Layout Calipers

Adjust the legs to measure an object and transfer those measurements to a tool or part

26 products

Center Finders

Line up your drill with the center of round bars and pipe

1 product

Layout Compasses

Draw circles and transfer distance measurements

27 products

Parallel Rules

Draw parallel lines, as well as circles, arcs, and angles

1 product

Straightedges

Draw straight lines and check the straightness of surfaces

44 products

Angle Transfers

Duplicate any angle in construction and other applications

2 products

Compass Point-Holding Clamps

Attach to a pipe, ruler, or beam to scribe circles and arcs too large for a compass

3 products

Contour Gauges

Transfer contours, patterns, and shapes for jobs such as installing floor tile and pipe insulation

7 products

Edge Finders

Locate edges, shoulders, center points, and lines on workpieces in milling machines

17 products

Straightedge/Protractors

Draw straight lines and measure angle, slope, and rise with one tool

2 products

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

198 products

Center Punches

Mark center holes in metal and other material

4 products

Drafting Curves

Use as templates for drawing curved lines

5 products

Center Punch/Angle Indicators

Find the center of pipe and other parts and determine setup angles on milling machines and grinders

3 products

Levels

Ensure surfaces are completely horizontal or vertical

191 products

Shaft Alignment Kits

Confirm that shafts are aligned or measure the degree of their misalignment

9 products

Band Saw Blade Alignment Gauges

Keep band saw blades straight between guides

1 product

Leveling Rods

Use with sight levels to estimate the distance between you and a given object

4 products

Laser Levels

Project level references onto surfaces when installing drop ceilings, pipe, or conveyors

20 products

Level Vials

Replace vials in levels or equipment

20 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

1 product

Laser Directing Components

Turn or split dot lasers to point them where needed

8 products

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

47 products

Vibration Meters

Spot-check vibration to gauge the health of your machine

6 products

Tachometers

Measure the speed of rotating parts on machines such as shafts, gears, and belts

26 products

Inertial Measurement Units

Mount to robot arms, cranes, and vehicles to accurately track their movements

1 product

Vibration Monitors

Mount to your machine to continuously monitor vibration and ensure it stays within the proper range

10 products

Speed Guns

Point and shoot for instant speed readings in mph

1 product

Stroboscopes

Shine a bright flashing light at moving belts and pulleys to measure speed and detect wear

13 products

Oscilloscope/Multimeters

Perform electrical tests, record data, and view a graph of electrical waveforms

4 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

1 product

Test Lead Sensors

Adapt Fluke multimeters to take temperature readings, so you don't need a separate meter

2 products

Multimeter Hangers

Free up your hands when using a Fluke multimeter

1 product

Multimeters

Take current, voltage, resistance, and other electrical measurements

108 products

Meter Computer Connectors

Plug into a computer to receive and analyze measurements from a Fluke wireless meter

1 product

Voltage Detectors

Check for voltage in receptacles, cables, and electrical components

13 products

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

1 product

Oscilloscopes

Analyze problems with electrical equipment by graphing voltage and other electrical waveforms

1 product

Electrical Resistance Meters

Prevent damage to electronics by checking that surfaces won't discharge static electricity

4 products

Insulation Testers

Measure insulation quality in motors, generators, and other electrical equipment

9 products

Battery Testers

Measure the health of rechargeable batteries, or check if it's time to replace disposable batteries

6 products

Electrical Panel Meters

See the amount of electricity used to run motors, generators, and other equipment

84 products

Power Consumption Data Loggers

Record data to monitor energy usage and fix intermittent problems, such as voltage spikes

4 products

Current Meters

Measure current without interrupting the circuit

3 products

Battery Discharge Indicators

Install on lift trucks and other electric vehicles to display battery condition

3 products

Voltage Meters

Measure voltage in electrical components

7 products

Current Detectors

Check for AC current and voltage without making direct contact with wire

1 product

Electronic-Component Testers

Test, identify, and troubleshoot components such as circuit boards and diodes

4 products

Decade Boxes

Test and troubleshoot circuits without needing to solder capacitors or replace resistors

2 products

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

171 products

Microscopes

Enlarge the view of small parts and samples for inspection and assembly

18 products

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

4 products

Microscope Eyepiece Cameras

Place over your microscope's eyepiece to view a live feed of extra-fine details

1 product

Wristwatches

Display the time, date, and smart functions on your wrist and keep your hands free

2 products

Hardness Testers

Determine the Rockwell, Brinell, or Durometer hardness of any material

30 products

Hardness Calibration Test Blocks

Confirm testers are accurate for a specific Rockwell or Brinell hardness

13 products

Surface Finish Gauges

Compare your surface to the swatches to see if you’ve achieved the desired finish

4 products

Magnetic Field Indicators

Measure the strength of a magnetic field in gauss

11 products

Surface Roughness Testers

Trace the surface of a part to calculate its roughness parameters in Ra, Rp, and Rq

1 product

Density Meters

Measure the density of liquids to check concentration; test battery fluid for a charge

42 products

Viscosity Testers

Calculate the thickness of a liquid to check for proper quality and consistency

7 products

Hardness Tester Indenters

Hard enough to make impressions on most metal to determine Brinell hardness

2 products

Scales

Bench-top, hanging, floor, and conveyor scales

177 products

Load Cell Displays

Connect to load cells to view weight measurements

1 product

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

302 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

80 products

Force Gauges

Test objects to see how much tension and compression force they can bear

117 products

Force Gauge Grips

Pair with force gauges to test wire, pins, and thin sheets

10 products

Torque Gauge Connectors

Replace square-drive connectors on torque gauges

3 products

Belt Tension Gauges

Check belt tension to minimize vibration, noise, and slippage

14 products

Test Weights

Place on or hang from your scale to calibrate it

210 products

Torque Sensors

Convert manually applied torque into an electrical signal that you can measure and record

16 products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

513 products

Thermal Cameras

Detect hot spots, leaks, moisture problems, and construction defects invisible to the eye

6 products

Humidity-Indicating Cards

Check humidity levels of moisture-sensitive inventory and equipment at a glance

9 products

Humidity Meters

Measure relative humidity without complex calculations

4 products

Combustion Analyzers

Measure boiler and furnace combustion efficiency

1 product

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

13 products

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

6 products

GPS Navigators

Navigate on foot with real-time GPS data

1 product

Weather Stations

Measure multiple weather conditions at the same time

3 products

Concentration Meters

Measure the concentration of solutions; also known as refractometers

9 products

Air Particle Counters

Monitor indoor dust levels and measure filter efficiency in HVAC systems

1 product

Rain Gauges

Measure the amount of rainfall

1 product

Chemistry Meters

Take water-chemistry measurements more precisely than test strips and swabs

24 products

Windsocks

Track wind speed and direction

35 products

Antifreeze/Coolant Testers

Check the level of freeze protection in coolant systems to keep them running smoothly

2 products

Water Test Kits

All the chemicals and labware you need for on-site sampling and water-quality testing

18 products

Data Recorder Charts

Place in temperature and humidity data recorders to document readings over time

16 products

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

56 products

Gas Leak Detectors

Find gas leaks in pipes, tubes, fittings, tanks, cylinders, and valves

23 products

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

Counters

Record and display the number of times events or processes occur

100 products

Light Meters

Measure light quality and intensity

18 products

Barometers

Measure atmospheric pressure changes

Check engine compression to maintain top performance

6 products

Airflow Meters

Measure airflow in duct, air filters, exhaust hoods, and other air applications

21 products

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

7 products

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

1 product

Gloss Meters

Measure the gloss of paint, coatings, and surfaces to ensure each product is as shiny as the last

2 products

Color Calibrators

Calibrate your color meter to identify colors with precision

1 product

Color Meters

Ensure consistent coloring on products such as labels and packaging

1 product

Fuel Injection Pressure Testers

Check fuel injection pressure to maintain your car's gas mileage

1 product

Containers, Storage, and Furniture

Graduated Cylinders

Precisely measure and pour liquids

38 products

Test Tubes

Hold small samples to test, mix, and inspect them

1 product

Tape Measure Holders

Keep tape measures close at hand

2 products

Carboys

Store and dispense more than one gallon of liquid

28 products

Centrifuge Tubes

Hold samples for use in a centrifuge

2 products

Jars

Everything from standard plastic and glass to sterile and tamper-evident jars

25 products

Beakers

Glass, plastic, and metal beakers

110 products

Vials

Store less than two ounces of samples and other substances

4 products

Pails

Plastic, metal, rubber, and paper pails

29 products

Bottles

Store and pour liquids using plastic, glass, and metal bottles

31 products

Density Meter Jars

Add liquid and immerse a density meter until it floats for precise readings

6 products

Reagent Reservoirs

Hold reagents and samples for easy access during pipetting

7 products

Caliper Cases

Store, protect, and carry calipers

8 products

Multimeter Cases

Store and carry multimeters

9 products

Caliper Pouches

Keep your caliper protected and within reach

1 product

Micrometer Holsters

Keep your micrometer protected and close at hand

1 product

Precision Measuring Tool Set Cases

Specially fitted to store and transport measuring sets

1 product

Depth Gauge Cases

Specially fitted to store and transport depth gauges

3 products

Micrometer Cases

Specially fitted to protect micrometers during storage and transportation

7 products

Variance Indicator Cases

Specially fitted to store and transport variance indicators

6 products

Spoons

Stainless steel, plastic, and wood spoons

14 products

Measuring Spoons

Measure ingredients equal to or less than 2 tbsp.

3 products

Pipettes

Transfer drops or a measured stream of liquid

25 products

Scoops

Collect and transfer bulk materials

2 products

Burettes

Release liquid with greater precision than pipettes

6 products

Pipette Tips

Attach to the end of your pipettor to dispense small amounts of liquid

61 products

Pipettors

Dispense a small amount of liquid for speedy, routine dispensing jobs

61 products

Measuring Cups

Measure ingredients larger than 2 tbsp.

2 products

Fabricating and Machining

Setup Blocks

Use as mounting bases and supports to ensure accurate angles and spacing

6 products

Sine Bars

Measure, mark, and inspect exact angles on dies and other precision parts

2 products

Angle Plates

Ensure accurate right angles and hold workpieces and fixtures perpendicular to your machine table

61 products

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

2 products

Sine Plates

Use with gauge blocks to measure angles on your workpiece or set up a part for precision grinding

4 products

Multitools

A variety of tools and blades all in one

22 products

Scribers

Mark steel, stainless steel, plastic, glass, and ceramic surfaces

6 products

Temperature Sensors for 3D Printer Extruder Heating Elements

Measure heating block temperature and send it to printer controllers

2 products

Fastening and Joining

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

2 products

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

51 products

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

3 products

Screwdrivers

Tighten and loosen screws

Tungsten Electrode Stick-Out Gauges

Measure the distance tungsten electrodes stick out from your nozzle for consistent TIG welding

2 products

Fluid Handling

Flow Sights

Visually confirm flow and inspect liquid color and clarity

152 products

Sights

Observe and monitor the contents of pipes, tanks, and other containers

231 products

Water Detector Sensors

Place near tanks, sump pumps, and pipe lines to alert you to water leaks

1 product

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

28 products

Gauge Glass

Create or repair liquid-level gauges to monitor fluid levels in containers

129 products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

84 products

Flowmeters

Measure the flow rate of a liquid or gas

1,016 products

Liquid-Level Gauges

Monitor fluid levels in containers

574 products

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

36 products

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

290 products

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

15 products

Gauge Liquids

Refill the liquid indicator on gauges with a U-tube

5 products

Pressure Gauge Snubbers

Reduce flow to suppress vibration and pressure spikes that can damage gauges

15 products

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

8 products

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

97 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

370 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

16 products

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

8 products

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

60 products

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

107 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 products

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

42 products

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

41 products

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

2 products

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

70 products

Differential Pressure Sensors

Attach to gauges and switches to detect static pressure changes in air-handling equipment

5 products

Pitot Tubes

Connect to gauges to measure air flow in filters, cooling coils, and other air-handling equipment

4 products

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

16 products

Hydraulic Accumulator Charging and Gauging Kits

Fill accumulators with nitrogen and test the pressure to ensure it’s within the correct range

1 product

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

1 product

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

134 products

RTD Transmitters

Send temperature readings from RTD probes in containers, tanks, and pipes to switches and PLCs

10 products

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

3 products

RTD Connectors

Attach plug-in connectors to RTD probes with wire leads

2 products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

145 products

Thermowells

Prevent damage to thermometers and temperature probes in pressurized tanks and pipelines

115 products

Pressure Switches

Activate controls, set off alarms, and power equipment when a set pressure is reached

308 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

719 products

Humidity Controllers

Monitor humidity and control it by automatically turning equipment on and off

2 products

Vacuum Pumps

Create suction force to move objects, draw liquids and gases, or generate flow

2 products

Differential Pressure Switches

Activate controls and alarms when the pressure difference between process lines exceeds a setpoint

53 products

Humidistats

Control the humidity in an enclosure or space

6 products

Vacuum Switches

Activate controls, set off alarms, and power equipment when a set vacuum is reached

26 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

103 products

Flow Switches

Turn equipment on or off when flow rate reaches a set point

173 products

Pressure and Vacuum Switches

Activate controls, set off alarms, and power equipment when a set pressure or vacuum is reached

6 products

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

10 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

22 products

Communication

Display Screens

Display text, numbers, symbols, and other information from your electronics

27 products

Tolerance Stickers

Add tolerance limits to indicators

1 product

Labels

Stick onto items to identify or convey information about them

110 products

Computer Monitors

Display information in tough conditions such as on factory floors and outdoor jobsites

9 products

Safety Equipment

Welding Lens Magnifiers

Attach to welding lenses to enhance details

8 products

Respirator Filter Monitors

Track the quality of incoming air as it travels from your air line to your respirator

2 products

Methane Detectors

Alarms and lights alert you to the presence of methane instantly or after a set exposure time

1 product

Heat Stress Monitors

Measure temperature, humidity, and radiant heat to keep people safe from heat-related hazards

4 products

Multi-Gas Detectors

Monitor air for carbon monoxide and combustible gases including methane, hydrogen, and propane

3 products

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

2 products

Carbon Dioxide Meters

Measure and display real-time carbon dioxide levels for indoor ventilation quality

1 product

Hydrogen Detectors

Alarms and lights alert you to the presence of hydrogen

2 products

Propane Detectors

Alarms and lights alert you to the presence of propane instantly or after a set exposure time

1 product

Carbon Monoxide Detectors

Alarms, lights, or color changes alert you to the presence of carbon monoxide

4 products

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

2 products

Pedometers

Record steps and miles while you walk and run

1 product

Electrical

Rotary Encoders

Track the distance, direction, and speed of travel of motor shafts, conveyors, and wheels

10 products

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

12 products

Potentiometers

Control speed, volume, and light intensity by varying electrical flow; also known as rheostats

6 products

Vibration Switches

Monitor vibration in machinery and shut it down or sound an alarm if levels rise

4 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

5 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

20 products

Linear Motion Position-Measuring Transmitters

Measure the position of an object moving in a straight line; also known as string pots

5 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

13 products

Battery Surge Protectors/Charge Monitors

Display the charge level of a large-cell battery while protecting it from power surges

1 product

Facility and Grounds Maintenance

Paint Striping Machines

Create clean lines on floors, ceilings, and paved surfaces

1 product

Lighting

Flashlight Magnifiers

Turn your flashlight into an illuminated magnifying glass

3 products

Heating, Ventilation, and Air Conditioning

HVAC Flame Detectors

Replace flame detectors in HVAC equipment such as furnaces, ovens, water heaters, and boilers

1 product

HVAC Switches

Control and monitor airflow in HVAC systems automatically

3 products

Lubricating

Oil Dispensing Stations

Connect to a bulk oil container to fill hand-held dispensers

1 product

Oil Dispenser Guns

Pair with container-mount dispensers to control the flow of oil

2 products

Oil Dispensers

Keep machinery lubricated by applying oil

1 product

Oil-Dispensing Pump Metering Valves

Add to manual and electric pumps to dispense the right amount of oil to different lubrication points

3 products

Grease Dispenser Monitors

Extend the life of bearings by taking the guesswork out of how much to lubricate them

1 product

Power Transmission

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

20 products

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

383 products

Material Handling

Robot Tool Calibration Styli

Calibrate robot arm movement for precision in tasks such as attaching fasteners

1 product

Compression Tools

Crimp sleeves around rope and wire rope to create loops for attaching fittings

41 products

Sealing

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products