Air bag safe. 12' heavy duty, twin clip, red coil cord lead. Checks 6, 12 and 24 volt systems. Ergonomic, slim designed clear handle. Positive contact molded strain relief Heavy duty stainless steel probe with insulated shaft. Multi functional design allows testing range of 3-26 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 impendence input compatible with computer circuits and sensors.