10PCS DC100V 10A 50A 100A Digital Voltmeter Ammeter Dual Display Voltage Detector Current Meter Panel Amp Volt Gauge 0.28" Red Blue LED(100V 50A Red Red)

AmmetersNote: the meter with a range of 50A or 100A must be connected to the shunt to measure the current no matter whether the measured current is less than 10A! Otherwise it cannot work. And our product doesn't include the shunt; you must buy separately.DC100V 10A 50A 100A Digital Voltmeter Ammeter Dual Display Voltage Detector Current Meter Panel Amp Volt Gauge 0.28" Red Blue LEDParameters:Power supply voltage: DC4V-30.0VCurrent test range: 0-10AVoltage measurement range: 0.0V-100VDisplay mode: double three digit 0.28 "LED digital tubeDisplay color: red+red, red+blue. OptionalThe product has two power supply modes: independent power supply and direct power supply. Note that no matter which power supply mode, the working voltage can only be 4V-30V. The current measuring terminal cannot be connected reversely. The "current detection positive pole" is connected to the "load negative pole", the "current detection negative pole" is connected to the "voltage negative pole to be measured", and the "load positive pole" is connected to the "voltage positive pole to be measured". The so-called load positive and negative poles are that the current inflow end is the load positive pole, and the outflow end is the load negative poleCommon problems and solutions(1) Inaccurate current displayIf the direct or independent power supply shares the same ground with the equipment power supply, the fine black wire can be accurately disconnected.(2) No display when connected to the power supplyAll AC rectified electricity must be connected to an electrolytic capacitor above 1000uF for filtering before supplying power to the meterPackage included:1 x DC100V 10A 50A 100A Digital Voltmeter Ammeter Dual Display Voltage Detector Current Meter Panel Amp Volt Gauge 0.28" Red Blue LED

• Ammeters