DROK®0.28'' DC4.5-30V 50A Voltage&Current Digital Multimeter Tester 12V/24V Volt Amp Gauge Panel Monitor Integrate Voltmeter&Ammeter with Red/Blue Dual Color Display Equipped with Current Shunt

Parameters:
Power Supply (Measure Voltage): DC 4.5-30V
Voltage resolution: 0.01V(when voltage < 10V)
Voltage resolution: 0.1V(When voltage >= 10V)
Measure current: 0 to 50A forward current (requires external 50A shunt)
Current resolution: 0.1A
Operating current: <20mA Dimensions: 48 x 29 x 21 mm
Cutting size: 45 x 26 mm
Measurement rate: >/= 500mS / times
Accuracy: 1% (+/- 1 digit)
Operating temperature: -10°c - +65°c
Operating humidity: 10 - 80% (non-condensing)
Working pressure: 80 - 106kPa
Sunshine: prevent direct sunshine

Wire connection:
Black wire(COM): common wire or ground wire
Red wire(PW+): power supply wire for the meter or signal wire of tested voltage
Yellow wire(IN+): input terminal of current; and please connect yellow wire to back side of tested device
(If you use voltmeter only, please connect yellow wire with black wire, or digits on voltmeter will flash due to outside
interference)

Note:
1.Current should be tested in the negative pole and you can test current in forward direction only
2.Please choose meter with suitable measuring range, or there will be linear error
3.Please ensure the max power supply doesn't exceed 30VDC
4.It adopts common ground design, meaning its tested terminal shares same ground wire with power supply terminal
5.It can be used in car, auto, motorcycle, vehicle and for battery voltage monitor, etc

Package Include:
1x Digital Volt Amp Meter
1x 50A DC Current Shunt