Elevate your home security with our Door Alarms for Home Security, a 2-pack of versatile and effective door and window alarm sensors. Emitting a powerful 120dB alarm, these sensors act as a deterrent for intruders and offer added safety for children. Featuring 4 modes, these alarms adapt to different scenarios. The Ordinary mode triggers a 1-minute alarm when the door opens, Doorbell mode emits a welcoming "Ding dong" sound, Alarm and Stop mode activates a loud alarm when the door is open, stopping when closed and Door closing reminder mode issues a repeated "Di Di" sound until the door is secure. Installation is a breeze with the adhesive bottom, making it suitable for windows, doors and various entry points. It can function as a doorstop alarm, pool door alarm, garage door alarm or sliding door alarm. The ultra-sensitive magnetic sensor ensures a quick response to door or window status. Operating on 2 AAA batteries (not included), the alarm volume decreases when the battery is low, with shortened alarm duration. Crafted with an advanced optimized circuit chip, these alarms minimize battery consumption for prolonged use. The high-quality ABS material adds durability and dust resistance. Enhance your home security effortlessly with these reliable and efficient door and window alarm sensors. Color: Black.