Adopt good-conductive pins Made of strengthened aluminum well-conductive pins to long lasting use Flame Retardant Materials Made of ABS and flame-retardant materials,to long lasting use Easy Installation A nylon retaining nut holds the meter in place,Fits to almost all panel locations you desired Voltage Monitoring Monitor vehicle 039;s Voltage helps you to better know battery condition , A Proper maintenance and extend and protect the battery life Current Monitoring 10A ammeter (include 10A), built-in shunt, does not require external shunt Wide Application Suitable for most DC 12V-24V car, UTV/ATV, truck, trailer, RV, caravan, bus, marine boat, yacht, etc Color: Black Material: plastic Package Contents: 1 x Red Current voltmeter 3 x Blue sheath terminal 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.