1Function: This meter is specially designed for measuring automotive leak current, consumption current, motor starting current and engine charging current. 2Quick Check: This meter rapidly checks out problems such as cracked wire leak current, electric leak current, wire?iron contact, which matches needs of power maintenance industry. 3Ac Dc Automatic Recognition: This meter utilizes latest digit?integrated technology to auto recognize Ac or Dc. It features one auto?zero button instead ofrotating zero knob. 4Advantages: Non?contact measurement, high accuracy, strong anti?interference, auto range and portability benefit users operate measurement fast, safely and reliably. 5Operation Tips: Long press Hold/Mem/Mr button to enter data review, use Zero/Light and Hold/Mem/Mr button to page up or down for reviewing data. Long press Hold/Mem/Mr button to opt out.