It is a Voltage Meter/Digital Voltmeter/Panel Meter/Monitor/Tester, Measuring Voltage Range: DC 0 ~100V, Power Supply Voltage: DC 7~24V; 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.