Digital LED Voltmeter

We are offering Voltmeter. * Standard Size and Specification * The Core is 10 A / D converter microcontroller, high accuracy, wide measuring range (30V ~ 400V) * get Power directly from the testing , and only need 2 wires can work normally and it is able to access accurate testing,no need match with low-voltage power adapter * Conditions of Use: －20℃～85℃、and relative humidity ≤ 80%