1、ACCURATE AND PROGRAMMABLE: Timer switch support 24 hours 7 days a week programmable. Repeat programs with 16 on off settings, and setting on off manually. Reasonable and accurate designs 2、DIGITAL LCD DISPLAY: Timer switch with countdown function. LCD display with LED indicators, easy to read. Suitable for 35mm DIN rail mounted, maximum 24 hours countdown to OFF 3、AUTOMATICALLY TURNS ON AND OFF: The programmable timer outlet can automatically turns on and off lamps and other electrical devices, save your time and costs on electricity 4、EXTEND YOUR APPLIANCES LIFE: Programmable timer switch support 16 ON/OFF programs per day, 15 combinations a week, practical to use, extend the life of your appliances and your home 5、USING TIPS: If you use digital timer with large capacity battery(not include), you can save the programs you set for back up memory when power failure, and safe to use Item Type: 7 Days Programmable Timer Switch Model: TM919HK Material: Flame retardant PC Power Supply: 50 60Hz Capacity: Resistive 16AMP, inductive 8AMP Power Supply: <5VA Time Range: 1min to 168hrs Power Outage: 90 Days Program: 16 on off per day Average Error: < ±2 seconds per day Temperature Range: -10~50℃ Humidity: <95% Mounting: 35mm DIN rail Battery: 1 x 3V CR2023 battery(not include) 1 x Timer Switch 1 x User Manual