Tlily - 6X Universal Digital Monitor Voltmeter Waterproof Voltage Meter led blue for dc 12V-24V Car Motorcycle Auto Truck

It is used to control the voltage of the storage battery, with the function of reverse connection protection; it not be burned line. Timely capture the state of tension of the battery, for measuring voltage purposes can also be used for other products. Specifications: Waterproof Color: Black LED display: Blue Voltage Measure: 6-30V Size: 1.4 inchx 1.4inch x 0.5 inch Interface type: anode and cathode Ecological Meter: Plastic Application: Universal for all cars, motorcycles and other universal models. Package Contents: 6 x LED DC voltmeter 12 x blue Isolated terminals Only the above package content, other products are not included. Note: Light reflection 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.