Circuit Testers

Outlet Tester with GFCI Check - Grounding & Receptacle Circuit Tester, Electric Outlet Tester Plug in, Automatic Electric Circuit Polarity Voltage Detector Breaker Finder (Yellow)

$8.49

$ 3 .99 $3.99

4.6

Grounding Product Test Kit with Outlet Tester and Conductivity Test Pen Continuity Tester for Grounding Sheets, Mats, Pads, Blankets, Wristband, Pillow Cases

$12.99

$ 6 .99 $6.99

4.9

Astro Pneumatic 7760 Cordless Circuit Tester

$13.92

$ 5 .99 $5.99

4.9

Automotive Test Light,Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester

$6.69

$ 2 .99 $2.99

4.4

Hendun Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Deep Freezer in Garage, Circuit Breakers GFCI Trip Alarm（Rechargeable Batteries Included）

$19.58

$ 8 .99 $8.99

4.6

Enhanced Automotive Test Light, 3V-48V Digital Circuit Tester with Automatic Bidirectional Voltage Testing, Portable Design, and Precise Voltage Measurement for Car, RV, and Truck

$6.99

$ 3 .99 $3.99

4.3

Cable Circuit Wire Tracker Automotive Electrical Open & Short Finder Circuit Tester with Tone Generator - Cable Wire Breaker Tracker, Circuit Fault Finder, DC 6-42V Probe Car Diagnostic Tools

$21.99

$ 10 .99 $10.99

4.9

Case Compatible with Power Probe 3 3EZ 4, Circuit Tester Storage Holder, Car Diagnostic Tool Digital Volt Meter Organizer Box Fits Multimeter Test Leads and Adapter (Bag Only)

$14.99

$ 7 .99 $7.99

4.3

Power Probe IV Diagnostic Circuit Tester

$279.97

$ 99 .00 $99.00

4.8

allsun GFCI Electrical Outlet Receptacle Tester,Circuit Tester,GFCI Detect Faulty Wiring Status Socket Checker,Standard 95-125 VAC, 3-Wire Light Improper Wiring Indicator(EM9805)

$12.99

$ 5 .99 $5.99

4.5

Gardner Bender GCT-3304 Continuity Tester

$6.99

$ 2 .99 $2.99

4.5

Outlet Tester, Socket Tester for Standard North American AC Electrical Outlets, Receptacle Tester for Plug Security Test

$10.33

$ 4 .99 $4.99

4.6

Large Size Heavy Duty 3-48V Digital LCD Circuit Tester with 140 Inch Extended Spring Wire,Car Truck Low Voltage & Light Tester with Stainless Probe

$16.14

$ 7 .99 $7.99

4.4

MESTEK GFCI Outlet Tester with Colour LCD Display, Electric Voltage Tester for Standard 3-Wire 120V AC Electrical Receptacles, Socket Checker Plug Tester, Detects Common Wiring Problems

$19.79

$ 7 .99 $7.99

4.3

Power Failure Alarm, Power Outage Alarm 2 Pack for Freezer with LED Indicator 7 Siren 0-110dB Adjustable 12H Alert, Freezer Alarm Power Loss Monitor for Refrigerator, GFCI Trip, Sump Pumps, Aquarium

$5.99

$ 2 .99 $2.99

4.6

Automotive Electrical Open&Short Finder Circuit Tester, Cable Tracker Electrical, Digital Car Circuit Scanner Diagnostic Tool, Automotive Short and Open Finder with Bendable Receiver Probe, DC 6-42V

$25.99

$ 11 .99 $11.99

4.6

Underground Wire Locator Upgrade, RockyMars Cable Tester for Invisible Fence for Dogs, Circuit Breaker Finder, Electric Fence Wire Tracer, Wire Break Locator, etc.

$41.29

$ 18 .99 $18.99

4.4

Southwire 58292240 60030S Circuit Breaker Finder Adapter/Accessory Kit; Includes Alligator Clips and Light Bulb Circuit Adapter (Compatible with Southwire 's 41210S Circuit Breaker Finder)

$8.95

$ 3 .99 $3.99

4.9

Carrying Bag Compatible with Kleiin Tools Et310 Ac Circuit Breaker, GFCII Outlet & Electrical Test Tool, Home Store Multimeter Case for Digital Multimeter、Clamp Meter and More

$18.99

$ 9 .99 $9.99

5.0

VDIAGTOOL V500 Pro Automotive Power Circuit Probe Tester with Breaker Finder, 9V-30V Auto Electrical Circuit Tester Kit, Multimeter/Oscilloscope/Relay/Injector Test, Open Short Finder, 20FT Cable

$199.99

$ 94 .99 $94.99

4.9

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Circuit Testers