Circuit Testers | McMaster-Carr

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Measures

Equivalent Series Resistance

Test End Component

Retractable Insulation Piercing Grabber

Threaded Needle Tip

Threaded Needle Tip with Alligator Clip

AC Voltage

30V AC to 122,000V AC

Alert Type

Electrical Safety Rating

Manufacturer

Tester Type

GFCI Receptacle Tester

High-Resolution Circuit Tracer

Certification

C-UL Recognized Component

ETL Listed

UL Listed

UL Recognized Component

Display Type

Analog

Digital

Manufacturer Model Number

For Fluke Model Number

Electrical Connection

Battery Size

Sensor End

Sheathed Alligator Clip

Test Leads with Needle Tips

Test Leads with Replaceable Alligator Clips

Test Leads with Sheathed Alligator Clips

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

3A992

EAR99

RoHS

Compliant

Compliant with Exemptions

REACH

Batteries Included

Current

DC Voltage

Batteries Required

Electrical Connection Component

Jack

Plug

Electrical Connection Gender

Digital Display Type

Connection End Shape

211 Products

Measuring and Inspecting

Voltage Detectors

Check for voltage in receptacles, cables, and electrical components

13 products

Electrical Outlet Testers

Confirm proper wiring by checking for open circuits

2 products

Current Detectors

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

1 product

Line Break Detectors

Check for continuity in circuits

7 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

Circuit Tracers

Locate cables behind walls, check for continuity, and identify circuit breakers

2 products

Circuit Breaker Identifiers

Determine which circuit breaker is connected to an electrical receptacle

4 products

Multimeters

Take current, voltage, resistance, and other electrical measurements

108 products

Data Cable Identifiers

Trace unshielded data and telephone cables to their source

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

Electrical

Binding Posts

Test circuits before making permanent connections

12 products

Electrical Cord Circuit Interrupter Converters

Hardwire to extension cords to protect against electric shock in wet areas

9 products

Relays

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

5 products