10pcs LED Voltmeter DC 0-300V Voltage Meter LED Digital Voltage Tester Measurement Voltage Power Supply Voltage DC 3.3.-30V(Blue)

AmmetersAttention:The power supply voltage of the instrument should not exceed 30V, and enough safety voltage space should be reserved;DC0- 100V, DC0-300V: When the measured value is less than 9.9V, only two digits will be displayed; when the measured value is greater than 9.9V, only three digits will be displayed.DC0-600V: When the measured value is less than 99V, only two digits are displayed; when the measured value is greater than 99V, only three digits are displayed.Technical Parameters:Dimension:34.8*23*20.5 mmMounting hole:32.8*21.7mmPower Supply:DC3.3-30V<;20mATestvoltage:DC0~300VDisplay mode: 0.36 "LED with red/blue/green digitsMeasurement accuracy: 1% (± 2 digits)Measurement rate: 500mS / timeFeatures:With three wires,the wiring is simple, the installation is convenient.Small size, can be used for various voltage testing.If there is a small tolerance,you can calibrate by the potentiometer on the circuit board.With polarity protection function for meter power supply.With three wires, can be connected to cars,e-bikes or motorcycles.Red wire: Power supply Positive terminalBlack wire: Public Negative terminal(Power supply and test negative terminal)Yellow wire: Testing terminalWorking conditions:Operating temperature: -10 ~ +50 Working humidity: 10 ~ 80% (no condensation)Working pressure: 80 ~ 106kPaSun exposure: no direct exposure

• Ammeters
• 10pcs LED Voltmeter DC 0-300V Voltage Meter LED Digital Voltage Tester Measurement Voltage Power Supply Voltage DC 3.3.-30V