YB4835VA DC Digital Voltmeter Ammeter 3.5-30V 4.5-100V LED Display Voltage Current Meter Volt Amp Panel 1Pcs(Color:Black Cover,Size:5A_DC14-100V)

Gauges********************************************************************************************************************************************************* YB4835VA DC Digital Voltmeter Ammeter 3.5-30V 4.5-100V LED Display Voltage Current Meter Volt Amp Panel 10A 20A 50A 100A Attention: 1, 999mA, 2A, 5A, 10A, 20A,the shunt is built in. 2,More than 20A ,you must use a shunt to work,even 0.1A, or it will be burnt.3,More than 20A,the shunt is not built in,you need to buy it separately. (1)If you have a shunt , please note your shunt specification (standard is 75mV, if no notes, all according to 75mV delivery) (2)If you don't have a shunt, please order the corresponding shunt, we will not notice at the time of shipment.4,Because the 24V battery charge full of floating voltage may be more than 30V, so "no" recommended direct use 24V battery.Technical Parameters: Supply voltage:No additional power supply(Take electricity from the circuit under test)<;20mADisplay mode: 0.39 "LED, red for voltage,green for currentDimensions: 70 × 40 × 30 mmInstallation opening: 68 × 38 mmMeasurement rate: 500mS / timeMeasurement accuracy: 1% (± 2 digits) Testing side: three-wire terminalsCOM: Test common terminal(The COM is commond negative of voltmeter and ammeter)V +:Test positive voltage inputA +:Test positive current input, It can only be connect the load negative and load power negative, as shown below.Suitable for "20A or less",no need a shunt:Suitable for "more than 20A",must need a shunt:Working conditions: Operating temperature: -10 ~ +50 Working humidity: 10 ~ 80% (no condensation)Working pressure: 80 ~ 106kPa

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