SurfoU Home/Office Door Chime Sensor, 1000ft Range, Adjustable Volume

Door Chimes When Door/Window Opens

Monitor Door/Window Closure

This wireless door chime is designed to monitor the closing status of your doors and windows, providing a reliable reminder whether you need to keep an eye on your toddler, an elderly person with dementia, or a curious pet.

Wide Coverage & Unlimited Expansion

With a range of up to 1000 feet (300 meters), this wireless doorbell ensures coverage for every door in your home or store. The device supports up to 64,000 learning codes, allowing you to pair it with other wireless doorbells for unlimited expansion. Customize your setup so you know exactly which door has been triggered.

55 Chimes & 5 Adjustable Volumes

Choose from 55 classic ringtones and adjust the volume in 5 levels from 0 to 110dB. The LED indicator and memory function retain the previously set chime, ensuring you don't have to reset every time you insert the sensor.

Easy to Install

This door sensor chime and receiver come pre-paired and ready to use out of the box. Simply plug the receiver into an outlet and use the included double-sided tape to stick the sensor to any door, window, or drawer.

Suitable for Various Occasions

Ideal for both commercial and home use, this doorbell alerts you when someone enters your retail store or restaurant, and acts as a home alarm system to look after children or elderly individuals. It serves as a security device to prevent theft and ensures the safety of your home.

Package Content & After-Sales Service

The package includes 1 plug-in receiver, 3 battery-powered sensors (batteries included), 7 screws, 1 mini screwdriver, 4 double-sided adhesive tapes, and 1 English instruction manual. We also offer prompt customer support, answering your questions within 24 hours.