1、A 24-hour smart analog timer is perfect for timekeeping, and the full time range is 1 minute to 168 hours. 2、Moreover, this timer has a tiny error within 2 seconds, ensuring a more accurate timekeeping function. 3、Programmable design will satisfy all the timekeeping needs in working, which also allows for 96 times a day ON / OFF. 4、The backlit Liquid Crystal Display will clearly show you the time, and enables easier time reading in the dark. 5、Battery changing is very simple, and the clear button layout largely simplifies the operation as well. Item Type: Digital Timer Switch Product Material: ABS Shell Model: TM929AK Display Mode: Liquid Crystal Display Backlight Load: 16A Power Consumption: <5VA Time Range: 1min-168hrs Power Failure: 90 days Program: 96 Times A Day ON / OFF Average Error: <±2 seconds / day Temperature Range: -10-50℃ Humidity: <95% Installation Method: DIN RAIL Function: 1. Clock Display 2. Programmable Timer 3. With Backlight Battery Specification: Removable Button Battery CR2032 3V 240mAh 1 x Digital Timer Switch 1 x User Manual