DC 0-100V 300V 20A Voltage Ammeter Shunt 20A 75mV LED Digital Ampere Meter Current Tester Volt Amp Panel Meter 48x29x21mm(DC0-300V(red-Blue))

AmmetersTechnical Parameters: Supply voltage: 1.Standard:DC3.5 ~ 30V(Note:The maximum input voltage can not exceed 30V, or be burnt.)<;20mADisplay mode: 0.28 "LED, single color or double color:(red-red):Both voltage and current are red color(red-blue):Voltage is red,current is blue.Installation opening: 45.5*26.5 mmMeasurement rate: 500mS / timeMeasurement accuracy: 1% (± 2 digits)Features: The wide power supply range, with reverse polarity protection.Display voltage and current on the screen at the same time.The decimal point automatically shifted.The testing side and the power supply side of the negative is connected(except the isolation meter).With a voltage calibration potentiometer, current calibration potentiometer, you can calibrate by yourself. The tolarance is absolutely exist.Good anti-interference ability, showing the refresh speed.With five wires,connection is convenient,used to monitor the battery voltage,can be also used for other products.Meter power supply: two-wire terminals Black wire: Negative power supply.Red wire: Positive power supply.Testing side:three-wire terminalsCOM(black wire): Test common terminal(TheCOMis commond negative of voltmeter and ammeter)V +(redwire): Test positive voltage inputA +(yellowwire): Test positive current input. It can only be connect the load negative and load power negative, as shown below.Suitable for "more than 10A",must need a shunt: Only suitable for electric bicycle: Working conditions: Operating temperature: -10 ~ +50 Working humidity: 10 ~ 80% (no condensation)Working pressure: 80 ~ 106kPaSun exposure: no direct exposure

• Ammeters
• DC 0-100V 300V 20A Voltage Ammeter Shunt 20A 75mV LED Digital Ampere Meter Current Tester Volt Amp Panel Meter 48x29x21mm