ITEM NAME:12V-24V Car Motorcycle LED Digital Display Voltmeter Waterproof Meter BLUE L4F4 12V-24V Car Motorcycle LED Digital Display Voltmeter Waterproof Meter BLUE L4F4 Used to monitor the storage-battery voltage, with reverse connection protection function, line will not burn. Material: plastic,metal Input voltage:12V-24V Measure voltage: 6 ~ 33V Lights color:-BLUE Size: 3.5 x 2.7cm(L x D) Quantity: 1 Package Content:-No packagiing 1 x Voltmeter Blue Colour Note: Light shooting 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..Protection function, line will not burn. Size: 3.5 x 2.7cm(L x D).