Feature:1. Replaceable battery CR2032 for back-up the memory (save the programs you set) when power failure. Reliable and safety to use.2. Suitable 35mm DIN Rail mounted, maximum 24 hours countdown to OFF.3. Countdown function. LCD display with LED indicators, easy to read.4. 24 hours / 7 days a week programmable. Repeat programs with 16 on/off settings, and setting on/off manually. Reasonable and accurate designs.5. 16 ON/OFF programs per day, 15 combinations to a week, practical use.Specification:Condition: 100% Brand NewItem Type: Timer Switches Material: Plastic Functions: Clock display(12hr/24hr format), Timer, Countdown Power Supply: 24V DCCurrent: 16A Timing Range:1min~168hoursPrograms:16 ON/OFF per dayPower Consumption:<5VAAverage Error:<2sec/dayTemperature Range:-10~50 Humidity :<95%.Package List:1 x Timer Switches 1 x Manual