Feature: 1. Widely used for AC 220V mains electricity test, voltage monitoring of 220v generator and inverter, and other AC circuit voltage test. 2. There are 2 wires for zero line and firewire, easy to connect, can test directly and no need of power supply. 3. The voltage meter uses LCD blue backlight display, clear to read. 4. Compact shape and lightweight, portable to carry and use. 5. It can measure and show voltage, the measuring range is AC80-500V. 6. Product stability, high measurement accuracy, strong anti-jamming capability Specification: Item Type: Voltage Meter Material: ABS Color: As shown in the picture Size: Approx.79x42x13mm / 3.1x1.7x0.5in Mounting Dimension: Approx.76x39mm / 3.0x1.5in Weight: Approx.35g/1.2oz Measuring Range: AC80-500V Working Voltage: No additional power supply, two-wire system Low Power Consumption: 0.2W Wiring Method: Binding post Display Mode: LCD blue backlight Measurement Rate: ≥ 2 times / S Extreme Working Conditions: Working Temperature: -10 ~ +50 °C Working Humidity: 10~80% (no condensation) Working Pressure: 80 ~ 106kPa Package List: 1 x Voltage Meter Note: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.