Circuit Testers

Klein Tools 80041 Outlet Repair Tool Kit with GFCI Receptacle Tester, Non Contact Voltage Tester and Wire Stripper, 3-Piece

-11% $46.89

Klein Tools 80023P Tool Set, Home Inspector Tool Kit with Digital Moisture Meter, Non-Contact Voltage Tester, GFCI Outlet Tester, 3-Piece

-8% $54.68

Ulta Lit Light Keeper PRO 01201 The Complete Tool for Fixing Miniature Light Sets

-25% $13.99

Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet and Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 6-Piece

-11% $70.78

Anyongora Automotive Test Light with 3-48V LED Digital Display, Automotive Circuit Tester with Voltmeter and Dual Color Polarity Indicator Light, Voltage Test Pen with Stainless Probe

-11% $7.95

HVAC Guys - The Fuse Saver | HVAC Circuit Tester | 3 AMP & 5 AMP Fuses | Fuse Tester for Circuit Breaker - UL Rated 24V AC/DC & 125/250V AC

$18.95

Hohean Christmas Light Repair Tool with 90 Replacement Bulbs, 6 in 1 Christmas Light Tester Complete Tool for Fixing Your Incandescent Xmas Holiday String Light Sets

-16% $24.99

Carrying Case Compatible with Klein Tools ET310 AC Circuit Breaker Finder & RT250 GFCI Outlet Tester & Electrical Test Kit,Circuit Tester Storage Organizer Fits for Digital Multimeter,Clamp Meter

$22.99

Hohean Christmas Light Repair Tool with 100 Replacement Bulbs, 6 in 1 Christmas Light Tester Complete Tool for Fixing Your Incandescent Xmas Holiday String Light Sets

-37% $19.99

Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester

-9% $28.99

Triplett ET200 AC Line Splitter and GFCI Outlet/Receptacle Tester with 5 Visual Indicators

$19.82

Lqito Lqito Multifunctional Car Circuit Tester Component Activation Electrical Tester 6-24V/3.5-36V AC/DC Car Power Tester Digital Display Short Circuit Finder for Continuity Testing

$22.99

KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses

$17.99

UNI-T AC/DC Advanced Circuit Tracer and Breaker Finder Kit, Wire Tracer Electrical in Wall Underground Short Open Detection 8V-480V Voltage Measurement 8 Languages(UT25CL)

-1% $206.00

Lqito Multifunctional Car Circuit Tester Component Activation Electrical Tester 6-24V/3.5-36V AC/DC Car Power Tester Digital Display Short Circuit Finder for Continuity Testing Red

$24.99

UNI-T AC Circuit Breaker Finder and Tracer Tool Kit with Electrical Integrated GFCI Outlet Tester, AC 90-120V USA Plug + Adjustable Sensitivity Beeper Indicattion+ Flashing LED Light - UT25A

$33.99

Power Failure Alarm with LED Indicator,80-110dB Adjustable Freezer Alarm with 7Siren,Power Loss Alarm with Voltage Test,Power Outage Alarm Perfect for GFI/GFCI Trips,Freezer (2 Packs)

-10% $35.99

Fluke ST120 GFCI Socket Tester Without Beeper

-46% $7.99

ATOBLIN Test Light Automotive, 3-72V DC LED Digital Circuit Tester, Heavy Duty Light Tester with Voltmeter, Auto Voltage Tester Electric Probe Test Pen for Fuse, Battery, Polarity

$13.99

Jonard Tools PT-100 Coax Cable Wire Tracer Pocket Continuity Tester & Toner with Audible Beep and LED, Red

$16.95

Aenllosi Hard Carrying Case Replacement for Klein Tools ET310 AC Circuit Breaker Finder GFCI Tester Tool Kit (Case Only)

-11% $15.99

MESTEK Electric Tester Kit with Moisture Meter, GFCI Outlet Receptacle Tester, Non-Contact Voltage Tester, Home Inspector Tool Kit with Carrying Case

$59.99

7-Way Round Pin Tractor Trailer Light Tester One-Man Testing Circuit Testers Replace# 7865L

-4% $28.69

Oyviny 7 Pin Trailer Plug Tester & 4 Pin Trailer Tester with Double-Sided LED Indicators, Trailer Light Tester for Boat Trailer RV Truck Camper, Not Suitable for Vehicle with Lamp Out Sensor

-5% $18.99