It is a Digital Voltmeter/Digital Meter/Panel Meter/Tester, Measuring Voltage Range: DC 0~100V, Power Supply Voltage: DC 7~25V, It has small size, high efficiency, long term stable and reliable quality,easy installation and use. Application: industrial equipments,electronic equipment, Power distribution box, distribution cabinet, regulators, teaching aids, household small distribution box, Storage Battery Car,Motorcycle, Car, E-bike, ATV, Scooter, and All kinds Voltage Measuring.platforms.