Program timer, can set 30 On/Off programs one day or per week. Count time, from1 Min to 23 hours 59 Mins With memory function, When the product contact is in the state, after the failure, and then call, the product contacts still keep the state. Also can controlled by buttons from terminal Al and A2. Can be share with 20 peoples by Mobile App. In the App can display: Today Ele (K Wh), Current Ele (mA),Current (W), Current Voltage (V), Ele (KWh) Over current protection function:If the load is greater than 16A,the product will cut off the load circuit automatically. A ZigBee is required to work Colour:White Material: ABS Package Contents: 1 x Intelligen Energy Meter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.