DP3 digital ammeter and voltmeter:

1. Sampling speed 2.5 times per second
2. The communication signal input adopts electromagnetic isolation
3. Can be equipped with up and down limit three-way alarm relay control output
4. Can carry one transmission output, such as 4~20mA or 0~10V
4. Three isolations between power supply, input, and output
5. Maximum input range ± 1999