It is a Digital Digital Current Meter/DC 12V 24V Digital Tester, Measure Current Range: DC 0 ~ 300A, Power Supply voltage: DC 6 ~ 24V, 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 Current Measuring.