Electronic Indicators | McMaster-Carr

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1,919 Products

Measuring and Inspecting

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

82 products

Variance Indicator Lifting Cords

Lift the spindle on your variance indicator without touching the indicator

1 product

Cords for Measuring Tool Data Processors

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

17 products

Measuring Tool Data Processors

Analyze and print data from measuring tools with SPC output

3 products

Height Gauges

Measure an object's height and mark workpieces for machining

27 products

Calipers

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

111 products

Caliper Tips

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

4 products

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

7 products

Outside Micrometer Stands

Hold micrometers to free your hands when measuring

3 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

33 products

Machine Tool Indicators

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

4 products

Caliper Calibration Checkers

Test your caliper's accuracy

2 products

Depth Micrometers

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

7 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

7 products

Calibration Rods

Check and set micrometers and other measuring tools

23 products

Micrometer Heads

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

9 products

SPC Wireless Transmitters

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

7 products

Caliper Range Extenders

Expand your caliper's range to measure large items

7 products

Depth Gauges

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

20 products

Thickness Gauges

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

25 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

7 products

Caliper Depth Base Attachments

Steady your caliper when measuring depth

2 products

Outside Micrometer Tips

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

9 products

Outside Micrometers

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

83 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

Bore Gauge Heads

Swap the head on your Mitutoyo electronic bore gauge for one with a different measuring range

19 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

5 products

Micrometer Head Mounting Brackets

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

16 products

Hour Meters

Display running time on a machine so you can schedule preventative maintenance

16 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

10 products

Thermometers

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

105 products

Stopwatches

Track time or record an event from start to finish

9 products

Thermometer Air Purges

Blow dust and moisture off infrared thermometer transmitter lenses

1 product

Thermometer Cooling Jackets

Connect to a compressed air or water line to keep infrared thermometer transmitters from overheating

1 product

Thermometer Insulating Tubes

Prevent infrared thermometer transmitters from overheating by shielding them from hot surfaces

1 product

Thermometer Covers

Prevent dirt buildup on infrared thermometer transmitters

1 product

Wristwatches

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

2 products

Timers

Count up or down to measure a period of time

23 products

Thermal Cameras

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

6 products

Inspection Indicators

Mount to your equipment for a signal when it's time for maintenance or inspection

4 products

Monoculars

Magnify still objects from far away to view features you couldn't see with the naked eye

1 product

DIN Panel Adapters

Make a meter face sit flush with a DIN cutout in a panel or enclosure

3 products

Force Gauge Grips

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

10 products

Counters

Record and display the number of times events or processes occur

34 products

Hardness Testers

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

1 product

GPS Navigators

Navigate on foot with real-time GPS data

1 product

Light Meters

Measure light quality and intensity

17 products

Scales

Bench-top, hanging, floor, and conveyor scales

142 products

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

24 products

Tachometers

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

25 products

Barometers

Measure atmospheric pressure changes

7 products

Weather Stations

Measure multiple weather conditions at the same time

1 product

Data Recorders

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

4 products

Position Indicators

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

2 products

Stroboscopes

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

13 products

Electrical Resistance Meters

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

4 products

Gas Leak Detectors

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

5 products

Force Gauges

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

52 products

Load Cells

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

136 products

Density Meters

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

1 product

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Inertial Measurement Units

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

1 product

Color Meters

Ensure consistent coloring on products such as labels and packaging

1 product

Torque Sensors

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

16 products

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

4 products

Containers, Storage, and Furniture

Micrometer Holsters

Keep your micrometer protected and close at hand

1 product

Electrical

Electrical Cords

Connect equipment and devices to a power supply

2 products

Development Board Sensor Modules

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

6 products

Facility and Grounds Maintenance

Faucet Timers

Count down to encourage effective handwashing that helps prevent the spread of illness

1 product

Lubricating

Grease Dispenser Monitors

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

1 product

Fluid Handling

Pressure Gauges

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

9 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

9 products

Differential Pressure and Vacuum Gauges

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

6 products

Pressure Test Gauges

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

9 products

Vacuum Gauges

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

1 product

Pressure and Vacuum Gauges

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

1 product

Differential Pressure Gauges

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

6 products

Vacuum Pumps

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

2 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

3 products

Flow Transmitters

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

14 products

Flowmeters

Measure the flow rate of a liquid or gas

104 products

Noncontact Temperature Sensors

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

8 products

Safety Equipment

Heat Stress Monitors

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

4 products

Communication

Display Screens

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

25 products

Computer Monitors

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

9 products