Description :
DC 4.5-30V 0-50A Dual LED Digital Ammeter Voltmeter Meter + Current Shunt
Specification :
Material : ABS Plastic Shell HousingColour : BlackLED Display : 0.28 inch LED Dual-color (red and blue)Voltage : DC 4.5-30VVoltage !#!amp!*!lt; 10V， resolution : 0.01VVoltage !#!amp!*!gt;= 10V， resolution : 0.1VCurrent : 0-50A forward current ( require external 50A shunt )Current Resolution : 0.1AOperating Current : !#!amp!*!lt;20mAMeasurement rate : !#!amp!*!ge; 500mS \/ timesAccuracy : 1% (!#!amp!*!plusmn; 1 digit )Operating Temperature : -10 c ~ +65 cOperating Humidity : 10 ~ 80%Working pressure : 80 ~ 106kPa
Wire Connection :COM : Black wire，Power Supply - ， Measure Voltage -PW+ : Red wire， Power Supply +， Measure Voltage +IN+， Yellow wire， Measure current input.Note : Pls connect the Yellow wire and black wire together to avoid the Interference when u use the voltmeter function only
Installation :

Package includes :
1 x Dual LED Digital Volt Amp Meter1 x 50A DC Current Shunt
Details pictures :