AC 30-500V 0.56" LED Digital Voltmeter Voltage Meter Volt Instrument Tool 2 Wires Red Green Blue Display 110V 220V DIY 0.56 Inch(Blue)

AmmetersAC 30-500V 0.56" LED Digital Voltmeter Voltage Meter Volt Instrument Tool 2 Wires Red Green Blue Display 110V 220V DIY 0.56 InchDescription:1. Operating voltage: no need to connect to any power supply, two-wire system2. The two-wire voltage meter design, the wiring is simple, easy to install3. When there is a slight error, you can calibrate it through the circuit board, "fine-tuning" potentiometer for calibrationSpecifications:1. Measuring range: AC70V-500V2. Power supply rangeNo additional power supply needed, direct use of the measured voltage as a power supply, range: AC70V-500V3. Maximum inputAC500V. Note: Input voltage higher than 500V may be permanently damaged!4. Allowable error: ± 1%;5. Input impedance> 1M ohmsRefresh speed: About 300mS / time7. Display modeThree-digit " 0.56 " LED digital tube8. Display the color: Green/Blue/Red9. Lead length: about: 20 cm / 7.87 in10. Outside 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 in11. Net weight: about 18g12. Operating temperature: -20 ° C to 65 ° C

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• AC 30-500V 0.56" LED Digital Voltmeter Voltage Meter Volt Instrument Tool 2 Wires Red Green Blue Display 110V 220V DIY 0.56 Inch