10PCS AC70-500V Digital Voltage Meter 0.56" LED Voltmeter Volt Instrument Tool 2 Wires Red Green Blue Display Voltage Tester 110V 220V(Red)

AmmetersFeature:Operating voltage: no need to connect to any power supply, two-wire systemThe two-wire voltage meter design, the wiring is simple, easy to installWhen there is a slight error, you can calibrate it through the circuit board, "fine-tuning" potentiometer for calibrationParameters:Measuring range: AC70V-500VPower supply rangeNo additional power supply needed, direct use of the measured voltage as a power supply, range: AC70V-500VMaximum inputAC500V. Note: Input voltage higher than 500V may be permanently damaged!Allowable error: ± 1%;Input impedance> 1M ohmsRefresh speed: About 300mS / timeDisplay modeThree-digit " 0.56 " LED digital tubeDisplay the color: Green/Blue/RedLead length: about: 20 cm / 7.87 inOutside dimensions: about: 4.8 x 2.9 x 2.2 cm / 1.89 x 1.17 x 0.87 inHole Size: about 4.6 x 2.7 cm / 1.81 x 1.06 inNet weight: about 18gOperating temperature: -20 ° C to 65 ° CPackage included:1PC x AC70-500V Digital Voltage Meter 0.56" LED Voltmeter Volt Instrument Tool 2 Wires Red Green Blue Display Voltage Tester 110V 220V

• Ammeters