YLDEE 12/24V Car Power Tester Probe Circuit Tester, DC/AC Digital Display, Non-Contact Car Power Tester with LED Display, Electric Circuit Tester for Automotive,

Multi-functional auto tester Without re-connection between the vehicle battery and testing components Main function Voltage Test/Polarity Testing/Continuity TestingLocate Missing cylindersMeasuring frequency of the ignition pulsesPeak Detection This is an equipment used to test the automotive electrical system within 12-24 volts.

In order to save the testing hours for the automotive electrical system, it is designed to testing the system without re-connection between the vehicle battery and the testing components.

Main Functions - Determine the polarity and circuit circumstance (short/open).

- Activating the components with positive or negative current without jumper wire - Testing the voltage and continuity of the circuit - Illumination - Locate missing cylinders - Measuring frequency of the high-tension ignition pulses and we could calculate the rotational speed of engine according to the measured frequency.

- Peak detection - Testing the voltage of the circuit and the voltage reading will be indicated on the LCD display within 1/10th of a volt.