Features Mechanical Timer: This timer allows for 24 hour control and has 300 hour power failure compensation in the event of a power failure. Clock Type: This timer is a direct reading clock type with a minute adjustment knob for easier and more accurate determination and confirmation of the current time. Automatic Switch: This timer can be switched on and off between preset and manual operations very quickly and easily. PC Housing: The housing of this mechanical timer is made of PC flame retardant material, making it safer to use electricity. Wide Application: This timer makes it easy to set the time for baking in the kitchen at home, but can also be used in scenarios such as shopping malls and supermarkets. Specification:Item Type: Mechanical Time Control Switch Material: PC Battery: 1 x 15110 80mAh 2.4V Li polymer (built in) Operating Voltage: 100-240VAC 50hz/60HZ Drive Mode: Quartz Motor Type Outage Compensation: 300H (working temperature 20℃) Time Accuracy: Error 30s (working temperature 25℃) Action Time Accuracy: ±3min (not including initial time for adjustment error) Cycle Time: 24 hours Power Consumption: 110VAC1W 220VAC2W Contact Capacity: Resistive Load: (15A) Incandescent Load: 10A Induction Load (cos diameter=0.7): 12A Motor Load (cos diameter=0.7): AC110V.750W AC220V.1500W Setting Time: 15min Minimum Setting Unit: 15min Minimum Setting: 15min Number of On Off Operations: 90 times/day Ambient Working Temperature: -10℃-50℃ Ambient Humidity: <80% Package List:1 x Mechanical Time Control Switch 1 x Battery Package List 1 x Mechanical Time Control Switch 1 x Battery