Multifunction Timer Lock Digital timer switch with a maximum setting of 999 hours enables precise timebased access control for a variety of situations. Heavyduty metal body with smooth edges delivers durable performance and is designed to be splashproof for use in different environments. Builtin LCD display with a white backlight provides clear, easytoread remaining time information at a glance. Automatic unlocking after the countdown finishes; no key is required, providing convenient and hassle operation. Specifications Time range: up to 999 hours Material: metal Display: LCD with backlight Unlock mechanism: automatic upon countdown completion; no key required Environment: splashproof Practical applications In a workshop or garage, lock a tool chest or cabinet for a set period; when the timer ends, the lock automatically opens for authorized access. In classrooms or makerspaces, restrict access to expensive tools or equipment during scheduled times; the timer enforces controlled use with automatic release. In home or office settings, manage access to items such as snacks, medicines, or shared devices by setting a fixed access window; the lock remains engaged until the timer expires.