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10 Best Circuit Testers - Holiday Sale
Best Choice01KLEIN TOOLSKlein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
Free Shipping9.9Exceptional
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- 02KAIWEETS
KAIWEETS Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, Electrical Circuit Tracer Tool with NCV Test & Flashlight, Includes Carrying Case and Adapters- KT301P
Free ShippingMain highlights- Non-Contact Voltage Test: The receiver includes a Non-Contact Voltage Test function, which detects nearby voltage sources quickly and safely. This added feature allows you to locate live circuits without direct contact, enhancing safety and providing a comprehensive testing solution
- Large LCD Screen with Backlight: Displays real-time voltage (30–150V), outlet wiring status, and signal strength for faster, more intuitive diagnostics. Backlit indicators make it easy to read in dimly lit breaker panels or tight spaces. Clear visuals eliminate guesswork, making it ideal for professionals and DIYers working with complex circuit breaker panels
- GFCI Outlet Tester: The transmitter doubles as a GFCI outlet tester, featuring an automatic trip testing function. Red/green LED indicators provide clear visual feedback, while the large LCD screen displays detailed wiring conditions to accurately diagnose 7 common wiring faults. The auto-hold function retains the latest outlet test results and voltage reading even after unplugging
- Complete Accessory Kit and Carrying Case: This Circuit Breaker Finder kit includes essential accessories like a 3-prong to 2-prong adapter, light socket adapter, and alligator clip adapter for increased compatibility. The durable carrying case keeps your device and accessories organized, secure, and portable, making it convenient for on-the-go professionals
- All-in-One Circuit Diagnosis: KT301P circuit breaker finder Easily locate breakers, check outlet wiring, and test GFCI protection—all with one compact tool. Combines a Circuit Breaker Finder, Outlet Tester, and GFCI Tester for fast, reliable troubleshooting in residential or commercial settings
9.8Exceptional
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Value for Money03NeoteckNeoteck Non-Contact Voltage Tester 12-1000V AC Voltage Detector Pen Circuit Tester Tool with LED Flashlight Beeper Pocket Clip Auto Mode NCV Live/Null Wire Distinguish Pen- Yellow
40% Off Free Shipping9.6Exceptional
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- 04AstroAI
AstroAI Circuit Breaker Finder with GFCI Outlet Tester, Electrical Tester Tool for Home/Workshop Circuit Tracing, Quickly Locates Breakers with Indicators
Free ShippingMain highlights- 【Wide Voltage Compatibility】Supports 90–120V AC at 50/60Hz, covering most standard household electrical systems. Features auto-shutdown and low-battery alerts to help prevent unexpected interruptions during use.
- 【Versatile Adapter Kit】Comes with 4 adapters, bulb socket, 3-to-2 plug, alligator clips, and labels, all designed to fit outlets and light fixtures. The included EVA storage case keep everything neatly organized and easy to carry.
- 【Two-Part Circuit Tester】Simply plug the Transmitter into an outlet or light socket, then scan your breaker panel with the Receiver to quickly identify the correct breaker, saving your time and effort.
- 【Quick & Accurate Circuit Targeting】This digital receiver offers precise detection to quickly locate breakers, effectively filtering out interference and minimizing the need for manual testing and troubleshooting.
- 【Integrated GFCI Tester】Use the outlet tester to check wiring conditions and confirm GFCI functionality, helping ensure reliable electrical safety.
- 【Clear Audio-Visual Alerts】The receiver beeps and flashes red to indicate the correct breaker, ensuring accurate identification. A built-in LED light illuminates dark panels, making circuit tracing operation easier and more precise in low-light conditions.
9.5Excellent
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- 05Gardner Bender
Gardner Bender GRT-3500 Standard Outlet Tester
12% Off Free ShippingMain highlights- Tests standard outlets, and extension cords
- Tests standard 3-prong outlets
- Neon lamps indicate 6 common wiring conditions
- Makes quick work out of any electrical project
- Compact ergonomic design
9.4Excellent
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- 06Sperry
Gardner Bender STK001 Voltage Test Kit, 2-Piece
12% Off Free Shipping9.3Excellent
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- 07KAIWEETS
KAIWEETS Voltage Tester, Non-Contact Voltage Tester with Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester with LCD Display, Buzzer Alarm, Wire Breakpoint Finder
Free ShippingMain highlights- SAFETY FIRST: IEC-rated CAT III 1000V CAT IV 600V, Meets CE requirements; The electrical tester is safely double insulated. High Voltage Alert to warn you of voltage above 90V, the screen turn red, and the safety symbol on the screen shines.
- NON-CONTACT: With NCV inductive probe for AC voltage; Just place the tip near a terminal strip, outlet, or supply cord. When the tip glows red and the pen beeps, you know there's voltage present. The live wire detector can automatically detect the live or neutral wire. Ideal for breakpoint Tests. Handy circuit tester for electricians, and homeowners.
- EASY USE: It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. When the higher the sensed voltage is, or the closer it is to the voltage source, it beeps at a higher frequency and the percentage value will be larger. At the same time, the screen will be red or green, red means high voltage and live wire are detected, and green means low voltage and null wire are detected.
- DUAL-RANGE: Detects standard and low voltage (12-1000V AC / 70-1000V AC) for more sensitive and flexible measurements. Press the S button to adjust sensitivity and adapt low range for doorbells, thermostats, irrigation wiring, etc; The NCV sensor automatically recognizes the voltage and displays it on the bar graph, and the percentage value can display the voltage signal intensity more intuitively.
- COMPACT DESIGN: Bright LED flashlight for work in dim areas; Low-Power-Indicator when battery voltage is below 2.5V; Automatic Power Off after 5 minutes without operation or signal detection; Pocket-sized, pen hook allows you to carry it in your shirt pocket. KAIWEETS provides a 3-year after-sale service, Please feel free to contact us if you have any concerns.
9.2Excellent
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- 08DFCROMI
Automotive Test Lights,5-90V DC Digital LED Circuit Tester Light,Heavy Duty Light Tester with Voltmeter, Auto Bidirectional Voltage Tester Electric Test Pen for Vehicle Car Motorcycle Truck Golf Cart
Main highlights- Widely Use of Automotive Test Lights - The automotive circuit tester light designed to test 5-90V DC voltage.Works on all 5-90v vehicle electrical systerms: Cars Trucks Golf Carts Motorcycles Boats etc. Can be used to detect power, ground and find shorts and breaks in the wires. Quickly check automotive headlights, turning signal circuits, taillights, socket failures, fuses, connections, disconnection, etc.
- Handy Probe & Flexible Extended Spring Wire - volt meter probe is very handy for checking voltages of batteries or low voltage circuits. It’s great for seeing how many volts a Liion battery is running on, to know its charge status. This probe also is good for checking continuity as well. Spring wire can be freely stretched up to 96 inches, with a wide measuring area; Anti-bending design of the tail wire, needless to worry about bad contact of the line.
- Bidirectional voltage testing tester pen - This upgrade circuit test light is a bidirectional voltage tester. You can attach the alligator clamp either to negative or positive ground, there is also a light emitting diode on the circuit board for polarity indication, red light indicates positive polarity and green light indicates negative polarity.
- Accurate & Easy LED reading display - The LED display of Test Light is easy to read.Showing the voltage helps diagnostics quite a bit.The red and green lights let you know if you are on the positive side or negative side. Red light of the automotive circuit tester light indicates positive polarity and green light indicates negative polarity.
- 5-90V DC Wide Testing Range Test Lights- The automotive circuit tester light with 5-90V DC voltage testing range, widely and ideal for checking various vehicles, electrical circuits, automotive headlights, taillights, turn signal circuits, faulty sockets, fuse connections, also for testing other 5-90v DC wirings and circuits.
9.1Excellent
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- 09Focemta
FOCEMTA Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display, 90-135V Electrical Circuit Tracer Tool for Electricians/DIY – Lightweight (Includes Batteries & Carrying Case)
Free ShippingMain highlights- PRECISION VOLTAGE & SIGNAL STRENGTH - Dual function LCD display: displays real-time voltage (90-135V) and signal strength for accurate circuit tracking. Unlike basic testers, our circuit breaker finder tool takes the guesswork out of displaying exact data, ideal for electricians and DIYers tackling complex panels
- LED Indicator Light & Large Display - GFCI tester has an automatic trigger test function, which is different from general testers. Our tool can accurately display the time it takes to shoot. The clear visual feedback of the red/green indicator lights combined with the details displayed on the large screen can accurately diagnose 6 common wiring failures, including open circuit/reverse polarity
- DURABLE & PORTABLE WITH HIGH EFFICIENCY ON SITUE: This switch finder features an impact-resistant ABS housing and lightweight design (0.9 lbs) - able to withstand the requirements of the workplace, compactly, sturdy and durable, suitable for repairing and troubleshooting domestic or commercial circuit failures. Includes a suitcase for easy storage and transport
- COMPLETE READY TO USE PACKAGE INCLUDES:1 Transmitter(IEC61010-1 Screw Sealed Battery Compartment), 1 Receiver (with anti-slip design), 2 AA batteries + 2 AAA batteries, 1 screwdriver, 1 manual, 1 carrying case, CAT II 135V certified with ETL listed to ensure area safety in residential/commercial wiring diagnosis
- All-in-One Circuit Diagnostics – Combines Circuit Breaker Finder, Output Tester, and GFCI Tester – Quickly locate switches, test outputs, and verify GFCI protection in one compact tool. Perfect for solving household wiring or commercial systems problems
9.0Excellent
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- 10AWBLIN
Automotive Test Light 3-60V DC Digital LED Ciruit Tester, Heavy Duty Light Tester with Voltmeter, Auto Bidirectional Voltage Tester Electric Test Pen
Free Shipping8.9Very Good
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