Motion Sensor Doorbell with 90dB Siren, Wireless Motion Detector Door Chime for Business When Entering, 3 Modes, 32 Tunes & 4 Volumes, Entry Alert for Home/Office/Store, with Power Adapter

Price: $21.99 - $17.59
(as of Oct 21, 2026 00:50:28 UTC – Details)

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Overview–This multifunctional door chime combines motion detection, a 90dB siren, and a flashing red light to alert you to intruders or visitors. This wireless motion sensor doorbell alarm is suitable for shops, offices, homes, businesses, and more, sounding an alarm upon detecting movement. Easy to operate and simple to install, it is an ideal security system for both homes and commercial spaces.
Three Modes–Select from three modes via the mode button: Voice, Alarm, or Music. In Voice mode, it plays a “Ding-dong, hello” voice prompt when motion is detected. In Alarm mode, it triggers a continuous 15‑second alarm upon detecting movement. In Music mode, it plays your selected track. The volume button allows adjustment across 4 levels, and there are 32 built‑in music tracks to choose from via the music button.
Two Power Supply Options–This motion sensor alarm supports two power options: a 9–15V power adapter or 3 AAA batteries (please note that the 3 AAA batteries are not included and must be purchased separately). Battery power offers greater convenience and freedom of placement, while the power adapter eliminates concerns about battery drain and provides longer continuous operation.
Easy Installation–The motion sensor door chime features a horizontal detection angle of 110° and a vertical detection angle of 15°. The package includes 2 screws and double‑sided tape. Upon receipt, simply install the batteries or plug in the power adapter and it is ready to use. Adjust the angle to avoid false triggers. Please note that this product is not waterproof, therefore it is not suitable for outdoor use. If the product does not respond accurately to motion, operates unstably, or triggers falsely, please reinstall the doorbell and adjust the angle, or replace the batteries and try again.
Notice & Warranty–Regardless of which mode the motion detector alarm is in, once it starts playing voice, alarm, or music, do not forcibly turn it off or disconnect power until the playback has completely finished and the red light has stopped flashing. Otherwise, all settings will be reset. We offer a 12‑month warranty, technical support, and responsive customer service within 24 hours. Should you have any questions, please feel free to contact us via Amazon email.