TUYA APP 220V 400V over under voltage protection three phase WIFI remote control smart energy meter for Smart home

Description

1-Measuring positive & negative active energy with negative energy accumulated into positive
energy,.
2 ,The meter also display three phase real voltage , real current , real active power , real power
factor , real frequency
3,Pulse LED indicates working of meter,Pulse output with optical coupling isolation
4,RS485 communication port and WIFI communication
5, Measuring active energy without calibration under long term operation
6, display step by step with button
7, it can use APP software for data reading and remoter control on/off.
8, it has overvoltage and undervoltage protection , it can set value from APP
9, it has overload protection ,it can set value from APP
10. it has timing control function , it can set value from APP
11, it can reset the active energy to zero from APP