1With the 48 x 24.5mm digital LCD display, which is more clear and convenient to read data. 2Two-wire LCD volt meter panel, able to measure the voltage range is AC 80-300V or 150-500V, the testing range is wide and wire connection is easy. 3Digital AC voltmeter and frequency meter display the measured AC voltage and AC current respectively on the same meter. 4The enclosure of this voltmeter adopts completely closed design, it is safe and reliable to operate. 5Low power consumption, high stability, high accuracy. The appearance adopts standard size, more convenient to install.