D69-2080 LED Dual Display AC Voltmeter Digital Voltage MeterFeature:1. Accuracy: 1%!#!amp!*!plusmn;2 words2. LCD Display3. Speed: 2 times per second4. Measurement range: 200-450V、 45-65Hz5. Do not need the power supply. Just measure two lines and tell the result6. Size: 79!#!amp!*!times;43!#!amp!*!times;48mmNote:This instrument only applies to pure AC 45-65Hz power supply、It can not be used to measure at the square wave inverter output sine wave and correction circuit.Extreme working conditions:Working temperature: -10 ~ + 50 \u2103Humidity: 10 to 80%Working pressure: 80 ~ 106kPaSun exposure: no direct exposurePackage included:1 x D69-2080 LED Dual Display AC Voltmeter