Circuit Testers

Lisle 82600 Digital Multi Meter Cat III Features Safely and Accurately Test Electrical Systems. Large, Easy to Read LCD Display with Backlight. Measures AC/DC voltage/current up to 600V and 10A, capacitance, diode, duty cycle, frequency,...

Lisle 28620 Circuit Tester With Buzzer Features Heavy-Duty Tester Signals with a Light and a Buzzer. Tests low voltage up to 28 volts. Spring loaded hook can be removed to use the probe tip only. Can also be used to check polarity and battery...

Lisle 24560 Replacement Bulb Features Replacement part for Lisle tool 24550   WARNING: California Prop 65

Lisle 28760 Bulb (LIS-28760) Features Replacement Bulb for 28640   WARNING: California Prop 65

Lisle 28830 Digital Circuit Tester 3-48V Features Heavy-Duty Circuit Tester with Digital LCD Display to accurately show DC voltage. Operating range of 3-48 volts DC to work on most vehicle electrical systems. 360° visibility of polarity. The...

Lisle 29050 Digital Circuit Tester 3-30V Features 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...

Lisle 32900 Hvy Duty Circuit Tester / Jumper Features A 2-in-1 Tester that Tests Circuits up to 28 Volts and Works as a Jumper Wire for Power or Ground. Heavy-duty circuit tester for checking low voltage up to 28 volts. By depressing the red...

Lisle 27430 24V Heavy Duty Circuit Tester Features 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...

Lisle 25600 Circuit Tester "Handy Hooker" Circuit Tester. Features 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 12 volts. Alligator...

Lisle 24550 Computer Safe Circuit Tester Features Indicates polarity. Safe for automotive computers. Won’t damage sensitive electronic components. Draws less than 21mA at 12-Volts DC. Operating range 3-28-Volts. The red light indicates...

Lisle 28400 H/D Circuit Tester Features 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...

Lisle 29500 High-Low Circuit Tester Features 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...