Function: Timer with 30 programmable On/Off schedules per day or per week. Countdown timer range: 1 minute to 23 hours 59 minutes. Memory function: Maintains contact state after power failure and restoration. Manual control available via terminal buttons A1 and A2. Supports sharing access with up to 20 users via mobile app. App display features: Today's energy consumption (kWh), current current (mA), current power (W), voltage (V), total energy (kWh). Over-current protection: Automatically disconnects load if current exceeds 16A. Note: A ZigBee hub is required for operation. This product is not compatible without a ZigBee hub. Inrush current exceeding 16A will cause the device to turn off. Ensure connected loads do not exceed 16A inrush current. Product Name: ZigBee Smart Meter and Timer Rated Voltage: 110-240VAC 50-60Hz Rated Current: 16A Mounting: DIN Rail 35mm Dimensions: 86.5 x 17.5 x 70.5mm Operating Temperature Range: -10C to +60C Compatible Apps: Tuya, Smart Life Wireless Protocol: ZigBee 3.0 Color: White Material: Plastic Package Contents: 1 x Smart Switch (Other accessories not included) Note: Lighting and display differences may cause slight color variation between images and actual product. Measurement error allowed: +/- 1-3cm.