Features: 1. Detachable battery design, easy to replace, convenient to use. 2. 35mm DIN rail mounting, easy to use, ideal for home use. 3. With countdown function, maximum 24 hours countdown to OFF. 4. LCD display, LED indicator, reading is more intuitive and clear. 5. 16 ON/OFF programs per day, 15 combinations per week. 6. Supports 24 hours/7 days a week programmability. 7. Built-in large capacity CR2450 battery to back up memory (save the programs you set) during power failure. 8. Repeat programs with 16 on/off settings and manual on/off setting. Specifications: Condition: 100% brand new Item Type: Timer Switch Material: Plastic Color: As the picture shows Features: Clock display (12h/24h format) Timer Countdown Power Supply: 12VDC Capacity: 16A Delay Range: 1min to 168hours Programs: 16 ON/OFF per day Power Consumption: Average Error: Temperature Range: -10 -50℃ Humidity: Package List: 1 x Timer Switch 1 x Instruction Note: 1. This product contains a battery. 2. Please note that the new type and old type of this product will be sent randomly, and please make sure you don't mind before ordering.