Feature:1. ABS Material: This second setting digital timer switch is made of ABS material with excellent craftsmanship, which can be used for a long time under normal operation.2. Programmable 7 Days and 24 Hours Per Week: Our second setting digital timer switch can be programmed 7 days a week or 24 hours a day, which is very convenient for the operator.3. Memory Backup: Our second setting digital timer switch has a built in removable battery for memory backup in case of power failure.4. Auto Calibration Time: This second setting digital timer switch has an auto calibration time error of 30 seconds per week, which you can match to the actual situation.5. 28 Kinds of Switch Repeat Program: With 28 kinds of switch setting repeat program and can do manual setting switch, if you have related needs, then this one is suitable for you.Specification:Item Type: Second Setting Digital Timer Switch Model: TM 630S KMaterial: ABSOperating Voltage: 85-265VAC 50 or 60HzOutput Current: 30ABattery: 1 x 200mah button cell CR2032 (shipped with built in battery).Package List:1 x Second Setting Digital Timer Switch 1 x Manual