AmmetersAttention:The metercan only be used to measure50/60Hz sine wavecircuit,it will be damage when power supply is by square wave, output of inverter and correction sine wave.Technical parameters:Voltage range:AC30-500V,the resolution: 1VMeasurement accuracy: 1% ± 2 digitsDisplay: 0.56'' LED with red digitsMeasuring speed: about 2 times per secondDimensions: Full-closed: 79 × 43 × 25mmInstallation size: 75 × 39.5mExtreme working conditions:Operating temperature: -10 ~ +50 Working pressure: 80 ~ 106kPaWorking humidity: 10 ~ 80% (no condensation)Sun exposure: no direct exposure Ammeters Two-Wire LED Digital AC Voltmeter AC30-500V Voltage Meter 0.56'' Blue Volt Panel Meter Voltage Tester AC 220V 380V Color One Color Model XWBYUJIE Brand Name XWBYUJIE Unit Count 1.0 Count Item Weight 50 Grams Manufacturer XWBYUJIE