Feature:1. With a tiny error within 2 seconds, this timer switch guarantees a more accurate timekeeping and time displaying.2. Equipped with 24 hour timing function, the full time range of the digital timer switch is 1 minute to 168 hours.3. Programmable design makes it easier to adjustment the timing, which also allows for 96 times a day ON / OFF.4. Liquid Crystal Display enables a clear time display, and the backlit design will show the time clearly in the dark.5. A battery with a large capacity up to 520 mAh allows for longer operating time, and also very easy to change.Specification:Item Type: Digital Timer SwitchProduct Material: ABS ShellModel: TM929BKDisplay Mode: Liquid Crystal Display BacklightWorking Voltage: 85-265VACLoad: 30APower Consumption: <5VATime Range: 1min-168hrsPower Failure: 90 DaysProgram: 96 Times A Day ON / OFFAverage Error: <2 Seconds / DayTemperature Range: -10-50Humidity: <95%Installation Method: DIN RAILFunction: 1. Clock Display2. Programmable Timer3. With BacklightBattery Specification: Removable Button Battery CR2450 3V 520mAh.Package List:1 x Digital Timer Switch 1 x User ManualNote:Please use the digital timer switch within the range of 85‑265V.