Brand N/A Model N/A Quantity 1 Color Black Material Plastic + iron Specification Supply voltage: 4.5~30V; Measuring current: 10A Features Dual display digital current and voltage meter Application With five wiring easy to access to car / battery car / motorcycle car lines used to monitor the battery voltage battery voltage status grasp can also be used for other products voltage and current measurement purposes English Manual/Spec Have Other Supply voltage: 4.5~30V; Test voltage: 0~100V; Minimum resolution: 0.1V; Measuring current: 10A; 2A 5A 10A resolution: 0.01A (direct measurement without the need for external shunt) more than 5A as long-term continuous operation at full load it is recommended to measure the end of the wire soldered directly to the outlet; Operating current: <20mA; Display: 0.28" LED two-color (red and blue); Dimensions: 48 x 29 x 21mm; Installation hole: 45.5 x 26.5mm; Measurement rate: 500mS / times; Wiring Methods: Header power supply: two line socket; Fine-black line: Header powered ground; Fine-Red: positive power supply header (note the fine line between red and black voltage cannot exceed 30V); Test side: three-wire outlet; COM-black line: Test public side; PW+ - Red: measure the positive voltage input; IN+ - Green line: Current input terminal; due to header with common ground design that side of the ground and power measurement terminal - the ground is the same so only received the device under test between the negative and the negative power supply pick the wrong will burn (such as single do voltmeter recommended when using the green line and the black line together to prevent outside interference caused ammeter digital) Packing List 1 x Dual display digital current and voltage meter (15cm-cable)