Auto lock to prevent misuse - The device locks the screen after 30 seconds of inactivity. Unlock by long-pressing the C/R button for secure, intentional operation. Flexible timing options - 28 separate timing groups are available, with a maximum duration of 168 hours per program. Timers are adjustable to fit a wide range of needs. Robust control hardware - Built with a high-performance relay and a copper coil transformer for stable, reliable switching and long-term durability. Battery-backed timekeeping - Built-in rechargeable lithium battery preserves the time and settings when power is removed, so there is no need to reset or replace batteries. Practical use scenarios - Home lighting schedules: automate lights to turn on/off at precise times without manual control. - Irrigation or pump control: manage watering or pumping cycles with long-duration timers. - Equipment power management: program on/off cycles for machines in workshops or laboratories, reducing standby energy and improving workflow. This device provides clear, customer-friendly functionality with reliable performance and long-duration timing, all while maintaining time and settings during power interruptions.