ZY single-phase series multi-function meter and combination instrument

1. high precision measurement of active power, reactive power and apparent power of single and three-phase power grid
2. provide digital tube or LCD display, and query local data
3. programmable setting of current and voltage ratio
4. support RS-485 communication and Modbus RTU protocol
5. support switch input, switch output and analog quantity output
6. auxiliary power supply: ac/dc80v~270v, AC220V
7. various shape selection to meet the requirements of different cabinet electrical circuits