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Protect Your Entrances with the eufy Security Entry Sensor The eufy Security Entry Sensor is an essential component for any comprehensive home security system, designed to monitor the status of your doors and windows in real-time. This compact and discreet sensor ensures that you are immediately alerted the moment an entry point is breached, providing peace of mind whether you are at home or away. Key Features: Extended Battery Life: Powered by a single CR-123A battery, this sensor is designed for long-term reliability, offering up to 730 days (2 years) of continuous monitoring before needing a replacement. Instant Notifications: Receive immediate alerts on your smartphone via the eufySecurity app whenever a door or window is opened by more than 1.5 inches. Integrated 100-Decibel Siren: In the event of a forced entry, a powerful 100-decibel siren can be triggered on your connected eufy HomeBase, acting as a significant deterrent to potential intruders. Tool-Free Installation: Setup is quick and effortless; simply peel off the included mounting tape and stick the sensor and magnet to your desired frame and door/window. Compact Design: The small footprint allows the sensor to fit seamlessly onto any door or window frame without compromising your home's interior aesthetic. Seamless Integration The eufy Entry Sensor is designed for indoor use and requires a eufy Security HomeBase (S280 or S380) to operate. Once paired, it integrates perfectly into the wider eufy security ecosystem, allowing you to create automated routines to optimise your home safety. Whether it's turning on lights when you enter a room or ensuring the siren sounds during an unauthorised breach, this sensor keeps your property secure. What’s in the Box: 1x eufy Security Entry Sensor 1x Magnetic Base Mounting Screws Instruction Manual Happy Card