Circuit Testers
Displaying 1 to 22 (of 22 products)
S & G Tool Aid 27000 6/12 Volts Heavy Duty Circuit Teste
Checks 6 and 12 volt systems Heavy duty battery clip 5' of tough, flexible, heavily insulated rubber wire Designed to withstand the most rugged use
S & G Tool Aid 27300 6/12 Volts Heavy Duty Circuit Tester
These Circuit Testers feature an extra long wire that stretches up to 12 feet for use, then automatically retracts. Quickly and easily check electrical circuits and accessories on 6 and 12 volt systems. Great for use on cars, trucks, boats, trailers,…
S & G Tool Aid 28200 12/24/42 Volt Circuit Tester
For 12 and 24 Volt and 42 Volt Hybrid systems Computer safe - draws 3 milliamps at 12 Volts Has two LED's for easy voltage identification: blue for 12 and 24 Volts and red for 42 Volts Wire stretches to 10 feet for use, then automatically retracts…
S & G Tool Aid 28300 Digital Circuit Tester
Measures from 5 to 28V DC LED indicates Green for ground and Red for power Cord stretches up to 11 feet Computer safe (not for use in testing air bags)
Lisle 28830 Digital Circuit Tester 3-49V
Heavy-Duty Circuit Tester with Digital LCD Display to accurately show DC voltage Operating range of 3-49 volts DC to work on most vehicle electrical systems 360 visibility of polarity The red light indicates positive polarity, green indicates nega…
Lisle 24550 Computer Safe Circuit Tester
Indicates polarity Safe for automotive computers Wont damage sensitive electronic components Draws less than 21mA at 12-Volts DC Operating range 3-28-Volts The red light indicates positive polarity, green indicates negative polarity
Lisle 25600 "Handy Hooker" Circuit Tester
Hooded Probe Protects Your Fingers and Automatically Centers the Wire. Small size allows easy use even in the tightest places. Quickly test low voltage up to 28 volts. Alligator clip grounds tester.
Lisle 26250 Low Circuit Tester
Quick check both AC and DC current up to 28 volts with power on. Helps locate shorts or breaks in wiring. Complete with insulated grounding clip.
Lisle 26270 Replacement Bulb for LIS-25600 and LIS-26250
For LIS-25600, LIS-26250 circuit testers; LIS-32150 power/ground outlet.
Lisle 27430 24 Volts Heavy Duty Circuit Tester
Heavy duty probe, cord and clamp. The probe is insulated with high-visibility shrink tubing to prevent the possibility of shorting the side of the probe to other components. Comes with a strain relief spring on the cord.
Lisle 28400 Heavy Duty Circuit Tester
Quickly tests low voltage up to 12 Volts A heavy duty circuit tester for lifetime use The probe, handle, cord and clamp are reinforced for extra durability Comes with a strain relief spring on the cord Cord is 49
Lisle 28640 The Ultimate Circuit Tester Kit
Heavy Duty Tester Signals With A Light And Buzzer. The tester kit tests low voltage up to 28 volts. Also finds electrical shorts, checks polarity, detects battery drain, and checks circuits from a distance. Heavy-duty coil cord extends over 8 feet. D…
Lisle 29050 Digital Circuit Tester 3-30V
360 visibility of polarity Operating range 3-30 volts DC to work on most vehicle electrical systems The probe is insulated to prevent the possibility of shorting the side of the probe to other components 47" cord and heavy-duty alligator clamp for…
Lisle 29500 High-Low Circuit Tester
Checks Both Low Voltage and Spark Plug Wires. The low-side checks AC and DC current up to 28 volts with power on. The high-side checks spark plug wires without piercing. Complete with insulated clip.
Lisle 30610 Heavy-Duty Circuit Tester With Grounding Adapters
Heavy-Duty Circuit Tester with Multiple Ground Source Connection Options. Heavy-duty circuit tester with multiple options for connecting to a ground source. Long, 12 cord has a quick coupler to securely connect clamp or power outlet plug. Large, str…
Lisle 56810 Relay Test Jumper Kit
Set of Four Relay Test Jumpers Make Testing Relays or Live Circuits Quick and Easy. Set includes four jumpers to fit the most popular size relays on domestic and import vehicles. Simply remove relay to be tested, insert correct jumper and insert re…
Lisle 60610 Relay Test Jumper Kit II
Set makes testing relays or live circuits quick and easy. Set includes four jumpers to fit many popular relays on Honda, Nissan, Toyota, newer Ford and GM mini micro relays as well as international trucks. Simply remove relay to be tested, insert c…
Lisle 69200 Test Lead Kit For Relay Test Jumpers
Use with 56810 or 60610 to Easily and Securely Connect Relay Test Jumper to a Multimeter. Can also use banana plug to pin probe adapter for use with pin probes. Kit contains two terminal to banana tip wires, two pin tip to banana plug adapters and o…
Lisle 69300 Master Relay and Fused Circuit Test Kit
Makes testing relays or live circuits quick and easy Includes eight jumpers to fit most popular relays The jumpers have tabs for clamping and flat pads to place test leads on Includes test lead kit for easily and securely connecting relay test jum…
OTC Tools & Equipment 3634 Heavy-Duty Straight Cord Circuit Tester
Designed for testing electrical circuits and locating shorts, grounds, and open circuits. 5-foot heavy-duty cord. Checks 6- and 12-volt systems. Ergonomic, slim designed clear handle. Bright red, slim style replaceable bulb. Positive contact-mol…
OTC Tools & Equipment 3650 Heavy Duty Remote Starter Switch
Allows one person to start and crank engine while under the hood or from either side of the vehicle With convenient hot circuit indicator, red ready light glows when starter switch is connected to a hot circuit; light goes off when switch is depress…
Displaying 1 to 22 (of 22 products)