Features:1. You can use the timer to switch ON/OFF any electrical equipments at a preset timer.2. 16 ON/OFF programs per day, 15 combinations to a week.3. 24 hours / 7 days a week programmable.4. Built-in battery for backup the memory (save the programs you set)when power failure.5. Automatic time error correction +/- 30 sec, weekly.6. Repeat programs with 16 on/off settings, and setting on/off manually.7. Easy to read LCD display, LED indicators.8. Countdown OFF time range 1 minute to 24 hours.9. It is suitable for water heater applications, panel mounting, wall switch applications, lighting control, outdoor switch applications.