3pcs Red Light Mini 0.36 Inch DC Current Meter DC0-999mA 4-30V Digital Display With Reverse Connection Protection Ammete

Feature Module nameCurrent display moduleMeasurement accuracy0 10 Refresh rateAbout 200ms timesDisplay methodThree digits 0 36 digital tubeMeasuring range0A 999mAPower supply range4V 30VWorking currentLess than 8mADisplay colorRedStorage temperature 10C to 65CInput resistance50 milliohmsWeight10gPeripheral size35 14 10mmWiring diagram The ground wire of power supply end and measuring end of this ammeter adopts common ground design that is the ground wire of the power supply and test end is interlinked so the test end of the ammeter can only be stringed after the household appliance ie Between the negative pole of the measuring device and the negative pole of the power supply of the device under test It is recommended that the power supply terminal of the meter head be powered by a single DU isolation The shunt must be connected to the circuit before use and then connected to the digital ammeter to prevent high voltage damage to the meter Shared power supply under testDU isolated power supplyPackage includes 3 x Meter