Doors alarm bell in comparison

52 MP3 Door Chime & Mute -- This wireless door entry alert for shop has 5 levels of adjustable volume from 0-110 dB. Offer 52 elegant mp3 music from the traditional"Ding Dong" to various well know chimes. Memory function Keep the previous setted tune after re-plugging it.

See Them Arrive in Full HD Get a crisp 1080p-grade view of anyone who approaches your front door. The advanced WDR and 4 3 aspect ratio ensure you get a color-accurate, head-to-toe image every time.

AI-Powered Human Detection Belleye doorbell camera utilizes advanced AI technology to effectively distinguish between humans and non-human moving objects, such as packages, cars, and pets. Receive instant alerts on your mobile device when motion is detected, keeping you informed of any activities at your doorstep with this cutting-edge video doorbell.

Satisfactory After-Sales Service Amazon Logistics is our partner, we can quickly deliver the door chime to your home within 1-2 days, we provide a 90-day refund service.If there are quality problems with the SanJie door chime, please feel free to contact us. So as to give you the best shopping and using experience.

100% New and high quality. Type to window or door. Ideal entry warning for homes, apartments, mobile homes, offices, hotel rooms,garages and more.

How it works - Koostone Wireless Door Chime comes with 2 door window sensors and 1 receiver, and each sensor can set a separate sound with the receiver, that means you can know the front door or the back door or the mailbox opens without needing to go to see it. The sensors will detect the door window, and will be triggered to send out a signal when the door window opening. Receiver will receive the signal and alerts. It can be used as door chimes when door opens for business.

Rechargeable Battery & Intelligent Motion Detection Enjoy the convenience of a 100% wireless connection with the rechargeable battery-powered CPVAN WiFi doorbell camera. Its built-in PIR motion sensor enables smart motion detection, instantly notifying you via the app whenever any movement is detected. Keep your home protected around the clock with CPVAN's smart video doorbell camera.

Wireless PIR Motion Sensor Door Bell Self-contained entrance alert with motion sensor and a built-in chime.Combined with motion detection, 90db alert and flashing red light, 2-6M detection range in open area, Great product for smaller shops, stores and business offices, this standalone, all-in-one chime alarm plays an important role in informing you of intruder or visitor.

5 in 1 multi-mode welcome doorbell alarm color light night light.

A weatherproof highly durable bell switch paired with a loud 80DB Alarm that can be used for signalling certain events such as in a workshop production-area.

All-In-One PRODUCT Self-contained entrance alert with motion sensor and a built-in chime. Great product for smaller shops, stores and business offices, who wants a simple and effective heads-up when someone walks through a door or any monitored areas. If you prefer custom ringtones, check out our M6 PIR Custom Chime.

Safe and Secure This window alarm can instantly detect any movement in your door or window. Now you can keep intruders out with our 100dB, super-powered alarm system. It uses a magnetic sensor that is extremely reliable in any condition. Plus, you can set a chime sound to let you know whenever a window or door has been opened