OTC 3631 Heavy Duty Logic Probe Tester Drive_1/2" then attach a 1/2" square

then attach a 1/2" square drive ratchet or breaker bar and turn

Constructed of high-grade heat-treated alloy steel

Easy to use and lightweight

Body Material: HP325

Packaged in a plastic carrying case:

OTC 3631 Heavy Duty Logic Probe Tester Drive_1/2" then attach a 1/2" squareMulti functional design allows testing range of 326 volts. Bright red and green LEDs interpret voltage signals such as ground, power, and frequency. Tests fuel injectors, solenoids, presence of serial data, and tach reference signals. Output tests on MAF, Cam, Crank, Hall Effect VRS sensors and more. High impedance input compatible with computer circuits and sensors. Features and Benefits: Air bag safe 12', heavy duty, twin clip, red coil cord lead