12-24v Led Cigarette Car Battery Tester Voltage Meter Voltmeter

Digital display of auto-voltage Bright LED lighting, easy to read Power supply via cigarette lampDigital display of the car voltage bright LED lighting, easy to read Power supply via cigarette lampExpands and protects battery and motorWhich batteries are safe:When the engine starts (not driving), the LED indicator:Between 13.5 to 14.5 (12V car)Between 26.0 to 28.0 (24V car)When the engine stops and nothing runs, the LED indicators:Larger than 12.0 (12V car) or 24.0 (24V car)Voltage monitor: including for car with 12V DCColor of the device: BlackDisplay color: RedMeasuring range: DC 8V-30V + / -% 1.2Material: PlasticPackage Included:1 x LED Digital Voltmeter Voltage Measurement Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.