Automotive electrical tester DC 6-24V, circuit detector, circuit analyzer, power tester, continuity test, short circuit test, polarity determination

【Function】 This device can test voltage polarity, relay and diode continuity, fuses and circuits, lamps and motors, detect and locate short circuits, check for ground faults, test cable and plug polarity, and measure DC voltages from 6V to 24V, etc.

【Application】 1. Connect the red clamp to the positive terminal of the car battery. 2. Connect the black clamp to the negative terminal of the car battery. 3. Connect the test probe to the negative terminal (6-24V DC). By switching the power switch, you can apply the battery voltage to the test probe.

【Features】 This device has two highly visible indicators: an audible beep and a flashing light. This makes it easy to use even in low-light conditions. See below for detailed operating instructions. The device has short-circuit protection. It will automatically shut off if the current exceeds 7 A. [Note] Do not use this device near explosive gases, vapors, or dust. When the power switch is turned on (or when shaken), battery current is directed to the pen tip. This can cause sparking if the tip touches the ground or certain electrical circuits. Do not use with a 110/220 V indoor power supply; it is designed for use with a 6–24 V DC system only.