18 Coolest Circuit Testers

 

ABN 4 Way Trailer Light Inline Circuit Tester with LED Output for Quick and Easy Results
ABN 4 Way Trailer Light Inline Circuit Tester with LED Output for Quick and Easy Results
ABN 4 Way Trailer Light Inline Circuit Tester with LED Output for Quick and Easy Results - Versatile tests tail, left, and right light wiring. Led indicator bright red led output. Convenient size small compact size is designed for simple storage and fits easily in glove compartment or pocket. Fitment fits four-way flat plugs. Purposeful the abn 4 way trailer inline circuit tester checks each electrical circuit for continuity.

 

XTUNER PT101 Circuit Tester Electrical System Diagnostic Tool with Multi-Function 12·24V Four Diagnostic Modes LCD Display
XTUNER PT101 Circuit Tester Electrical System Diagnostic Tool with Multi-Function 12·24V & Four Diagnostic Modes LCD Display
XTUNER PT101 Circuit Tester Electrical System Diagnostic Tool with Multi-Function 12·24V & Four Diagnostic Modes LCD Display - 【easy to use】 large & colorful lcd screen, read results on the lcd screen, easy to navigate the user menu 20 foot power lead and extra 20ft extension cable. 【Multi-function】 pt101 circuit tester with multi-function works as an avometer, test light, built-in flashlight, short circuit indicator, relay/com- ponent tester, continuity tester and bad ground indicator it provides great simplicity for users to check circuitry condition, support multiple vehicles. 【Features】 ac-rms, ac peak to peak, frequency and pulse width for signal test digital voltmeter with min/max voltage capturing. 【Diagnostic modes】 4 diagnostic modes for 12v・24v displays up to 60 volts and resolution of 001 volt supply power and ground for functional component test. 【Safety design】protection design 8 amp circuit breaker protection, automatically reset, no button to push ergonomic housing design with rugged and water resistant specification.

 

Power Probe III wCase Acc - Red PP319FTCRED Car Automotive Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester
Power Probe III w/Case & Acc – Red (PP319FTCRED) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester]
Power Probe III w/Case & Acc – Red (PP319FTCRED) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester] - The power probe 3 is a digital voltmeter that works off of 12-24 volt sources, with the ability to apply power and ground. Using an auxiliary ground cable to check continuity and test components, the tool is protected by an 8 amp circuit breaker.

 

Power Probe III Clamshell - Red PP3CSRED Car Automotive Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester
Power Probe III Clamshell – Red (PP3CSRED) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester]
Power Probe III Clamshell – Red (PP3CSRED) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester] - The power probe iii circuit tester (red) with the ability to supply power or ground with an indicator tone and bright-white led headlamps. Features digital voltmeter, min/max, audible circuit monitoring, 4mm standard banana jack and auxiliary ground for component testing. Works with 12, 24 vdc systems.

 

XTUNER PT101 12V24V Power Probe Circuit Tester Electrical System Diagnostic Tool for AVOmeter Test Light Short Circuit Indicator
XTUNER PT101 12V/24V Power Probe Circuit Tester Electrical System Diagnostic Tool for AVOmeter Test Light Short Circuit Indicator
XTUNER PT101 12V/24V Power Probe Circuit Tester Electrical System Diagnostic Tool for AVOmeter Test Light Short Circuit Indicator - 8 amp circuit breaker protection, automatically reset, no button to push20 foot power lead and extra 20ft extension cable. Digital voltmeter with min/max voltage capturingergonomic housing design with rugged and water resistant specification. Pt101 circuit tester works as an avometer, test light, built-in flashlight, short circuit indicator, relay/com- ponent tester, continuity tester and bad ground indicator. Large and colorful lcd screen, easy to navigate the user menudisplays up to 60 volts and resolution of 001 volt. Protection design for safetysupport multiple vehicles and after-sales warranty.

 

Performance Tool W2992 LCD Digital Circuit Tester Tool
Performance Tool W2992 LCD Digital Circuit Tester Tool
Performance Tool W2992 LCD Digital Circuit Tester Tool - Surge protected circuitry displays dc voltage from 3 to 48v (± 03v accuracy). Computer safe .

 

2PCS Heavy Duty Automotive Circuit Tester Premium 6-24V Test Light with Extended Spring Test Leads Sharp Piercing Probe Circuit Voltage Tester with Replacement Indicator Light for CarVehicles
2PCS Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car/Vehicles
2PCS Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car/Vehicles - Strictly tested long service life test light bulb, including 1 pcs replacement conductive spring& bulb set to make it serve you faithfully for years 100% satisfaction customer service. 6-24v widely use circuit tester,designed to check vehicles electrical circuits, automotive battery, circuit integrity and other 6-24 volt wiring and circuits. Made with sharp super hard steel probe for piercing wires, also for hard to reach areas. Heavy duty construction, large size tester body made with high quality abs, heavy duty, shatter-proof, durable than normal test light. Portable 135 inch long enough pu spring wire cord and large size alligator clip for easy and one hand operation.

 

Power Probe IV wCase Acc - Red PP401AS Car Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester Fuel Injector Tester
Power Probe IV w/Case & Acc – Red (PP401AS) [Car Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester Fuel Injector Tester]
Power Probe IV w/Case & Acc – Red (PP401AS) [Car Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester Fuel Injector Tester] - Supplies power and ground for functional component testing. Fuel injector tester for easy circuit diagnosis. Large color lcd screen with easy to navigate user menu. Pcm/ecm driver supplies safe voltage for testing computer driver circuits. Digital volt and ohmeter for circuit testing. Ac-rms, ac peak to peak, frequency and pulse width for signal testing.

 

Reese Towpower 85350 Adapter with LED Circuit Tester 7-Way Blade to 6-Pin or 4-Way Flat
Reese Towpower 85350 Adapter with LED Circuit Tester (7-Way Blade to 6-Pin or 4-Way Flat)
Reese Towpower 85350 Adapter with LED Circuit Tester (7-Way Blade to 6-Pin or 4-Way Flat) - Instantly checks basic trailer electrical circuit for connectivity. Easily adapt oem 7-way blade connector to either 6-pin round or a 4-way flat connector. 6-pole round connector is switchable to meet desired wiring requirements. Hinged dust cover protects 6-pin round when not towing. Displays connectivity using high visibility led’s.

 

POWER PROBE IIIS w Case Acc - Carbon PP3S04AS Car Automotive Diagnostic Test Tool Digital Volt Meter ACDC Current Resistance Circuit Tester
POWER PROBE IIIS w/ Case & Acc – Carbon (PP3S04AS) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, ACDC Current Resistance Circuit Tester]
POWER PROBE IIIS w/ Case & Acc – Carbon (PP3S04AS) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, ACDC Current Resistance Circuit Tester] - Quickly identify power or ground circuits with the touch of the probe tip. Determine if motors, lights, fans, relays or circuits are operational on or off the vehicle by applying battery power or ground through the tool. Angled screen for better visibility. 19 foot cable. Screen flip feature allows user to read readings upside down.

 

VXDAS VSP200 Automotive Circuit Tester Power Circuit Probe Kit - DCAC Current Resistance Vehicle Voltage Signal Diagnostic Activating Components Tools for 12V24V Electrical System Circuit Tester
VXDAS VSP200 Automotive Circuit Tester Power Circuit Probe Kit – DC/AC Current Resistance Vehicle Voltage Signal Diagnostic Activating Components Tools for 12V/24V Electrical System Circuit Tester
VXDAS VSP200 Automotive Circuit Tester Power Circuit Probe Kit – DC/AC Current Resistance Vehicle Voltage Signal Diagnostic Activating Components Tools for 12V/24V Electrical System Circuit Tester - 【Read results on lcd screen】a lcd screen can display all the test results and two head light help you know the results clearly in any light and work in the dark area 20 feet long cable allows you to conveniently use the tester to detect any area of the car. 【Circuit tester with wide functions】voltage & polarity testing, continuity testing, signal circuit testing , activating components in hand as well as in the vehicle and testing trailer lights and connections, activating components w/ground, red/green polarity led, following & locating short circuits, checking for bad ground contacts. 【Safety protection design】automatic 8 amp resetting circuit breaker protects the tool from overload getting power source via connecting with vehicle battery and cigarette lighter. 【Four diagnostic modes for 12v-24v】dc voltage, ac voltage, resistance and diode also test the continuity of the power switch, relay and diode quickly. 【support multiple vehicles and after-sales support】for cars, boats, trailers, atv, motorhomes and many other vehicles packaged with a case to avoid loss and damage custmer service, any problem, just contact us freely.

 

IPA 7865L Circuit Tester
IPA 7865L Circuit Tester
IPA 7865L Circuit Tester - This kit contains a trailer light tester that will verify the tow vehicle is sending proper signal to the connector, while cleaning tools remove corrosion and verify proper pin size on both male and female truck/trailer plugs. Test, clean and restore 7 round pin connections. When added to your preventative maintenance techniques, it will keep your trailer lights on for use with 7 round connectors.

 

Cal-Van Tools 76 Relay Circuit Tester
Cal-Van Tools 76 Relay Circuit Tester
Cal-Van Tools 76 Relay Circuit Tester - Identify problems quickly- in addition to the bright led indicators, clear labeling of each light allows you to identify the working and faulty circuits at a glance. Convenient compact design, easily store it in your glove box, door pocket, or tool box take it with you and always be prepared. Long lasting construction, designed to be weather, corrosion, and impact resistant for years of reliable service. The 76 relay circuit pro is a tool that can test an entire circuit from the battery to the component in question as well as determining if the relay itself is functioning properly. No tools needed, excellent plug-n play design means you don’t need anything else to effectively test your 7-way blade socket.

 

All-Sun EM285 Power Probe Car Electric Circuit Tester Automotive Tools 6-24V DC Support Track and Locate Short Circuits Test for Continuity with The Assistance of its Auxiliary Ground Lead
All-Sun EM285 Power Probe Car Electric Circuit Tester Automotive Tools 6-24V DC Support Track and Locate Short Circuits Test for Continuity with The Assistance of its Auxiliary Ground Lead
All-Sun EM285 Power Probe Car Electric Circuit Tester Automotive Tools 6-24V DC Support Track and Locate Short Circuits Test for Continuity with The Assistance of its Auxiliary Ground Lead - 【Operate instrcution】 ①unroll the unit’s cable ②clamp the red clip to the positive terminal of the vehicle’s battery ③clamp the black clip to the negative terminal of the vehicle’s battery. 【Functionary】 allsun em285 is an electrical tester for reducing diagnostic time in automotive electrical systems the unit has short-circuit protection and can test for bad ground contacts instantly . 【handy】 all-sun em285 have long cable makes your testing easily  it is a comprehensive 6-24v dc test kit after a simple hook-up of the unit to the vehicle’s battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward. 【Multi-functional】 test for continuity test for polarity of a voltage check switches, relays and the on-off of diodes, fuses and circuits  test for polarity of electric cables and plugs track and locate short circuits test for bad ground contacts. 【Tips】 ①an alarm sound made by the item indicates that the circuit breaker trips off ②after the circuit breaker trips, it will reset automatically within 3 to 5 seconds ③after an alarm sound,  if this item is still connected with the testing object and you keep pressing down the power switch, the circuit breaker will repeat the process of trip and reset automatically.

 

Automotive Circuit Tester6-24V Vehicle Diagnostic Test Tool Car Battery Tester ACDC Voltage Diode Current Detector
Automotive Circuit Tester,6-24V Vehicle Diagnostic Test Tool Car Battery Tester AC/DC Voltage Diode Current Detector
Automotive Circuit Tester,6-24V Vehicle Diagnostic Test Tool Car Battery Tester AC/DC Voltage Diode Current Detector - 【Durable and safety】 an auto current detector circuit breaker makes this tool very safe and sustainable its short-circuit protected as well as a safety measure to protect the device from overload. 【High quality】this circuit test pen made of durable plastic 304 stainless steel probe with pointed end and alligator clip enable easier reach to tiny and awkward areas. 【wide compatibility】 automotive circuit tester is a fast and efficient electrical scanning probe, works on all 12-24v sources, like cars, boats, trailers, fuel pumps, relays, and more. 【Multi-functional】 designed for voltage & polarity testing, continuity testing, signal circuit testing, supplies power/activating components, trailer lights & connections testing, red/green polarity led, follows & locates short circuits, and checks bad ground contacts. 【Easy to use】this unit housed in rugged and with a very friendly user interface, even a beginner can easily use it without the manualflexible 158in extension cord allows reaching wires in or out of the vehicle or some congested places.

 

ATD Tools 5614 Relay Circuit Tester
ATD Tools 5614 Relay Circuit Tester
ATD Tools 5614 Relay Circuit Tester - Able to test an entire circuit, from battery to component, including the relay with this item the technician can jump a relay do an ac charge from the relay by activating the compressor do compression testing by activating the starter relay and even check turn signals or lights from the front of the car. With this item the technician can jump a relay do an ac charge from the relay by activating the compressor do compression testing by activating the starter relay and even check turn signals or lights from the front of the car. Includes (1) tester, (6) popular relay leads, and (1) universal relay lead. The lighted display shows the technician the problem immediately. Allows the technician to diagnose the problem without the use of a multimeter.

 

PT150 Power Tester of Vgate Vehicles Electrical System Diagnostics 12V24V Automotive Circuit Tester with LED Flashlight
PT150 Power Tester of Vgate Vehicles Electrical System Diagnostics, 12V/24V Automotive Circuit Tester with LED Flashlight
PT150 Power Tester of Vgate Vehicles Electrical System Diagnostics, 12V/24V Automotive Circuit Tester with LED Flashlight - ✔ 【Wide compatibility】 works on all 12-24v sources, like cars, boats, trailers, fuel pumps, relays, and more. ✔ 【Wide range applications】 pt150 circuit tester can be applied to continuity testing, voltage & polarity testing, signal circuit testing and checking for bad ground contacts, etc. ✔ 【user-friendly design & configuration】 built-in flashlight enables you to work in the dark flexible 20 feet extension cord allows reaching wires in or out of the vehicle or some congested places, one-year manufacturer warranty. ✔ 【Multiple working modes】 a large color backlit lcd screen with easy to navigate user menu allows reading dc voltage, ac voltage, resistance and tone on/off very clear. ✔ 【Short-circuit protection】 the tool is short-circuit protected and as a safety measure to protect the tool from overload.

 

Elitexion Digital LCD 3-48V Wide Range Circuit Tester with Extended Spring Cable
Elitexion Digital LCD 3-48V Wide Range Circuit Tester with Extended Spring Cable
Elitexion Digital LCD 3-48V Wide Range Circuit Tester with Extended Spring Cable - This is a backlit digital lcd 3-48v wide range circuit tester with about 12ft spring cable for long reach. Normally use to check electrical circuits and accessories on all 3-48 volt systems. Computer safe and is ideal use for cars, boats, trailers, vans, rv’s, motorcycle, airplanes and snowmobiles. The needle-sharp stainless steel probe allows for easy piercing on the cables. The circuit tester is about 85″ in size and has ergonomic design for easy use in confined areas.





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