For Tuya For Wifi Three-Phase Meter Over-Voltage And Under-Voltage Protector

When overvoltage, undervoltage, overcurrent occurs, the product will immediately cut off the power supply to protect your electrical equipment from damage. The backlight is red when the relay is disconnected, and white backlight is normal. The up and down keys switch to display three-phase voltage, current, power factor, and frequency. Fault record: record overvoltage, undervoltage, overload, low current protection, voltage imbalance, current imbalance, and phase protection.Specifications: Product name: Relay switch