It is a Digital Voltmeter/Digital Meter/Tester, Measuring Voltage Range: DC 4.50~30.00V ( Can Measure Voltage Directly ), 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.platforms.