KERUI Wireless Door Sensor Doorbell with 60 Chimes, 500ft Range

Get alerted the moment a door opens.

Stay aware of entry points at home, in a shop, or in an office without adding wiring or complicated setup.

Safer entry alerts for busy homes and businesses

✅ Hear an alert when a door opens and keep better watch over entry areas

✅ Choose from 60 chimes so the sound fits your space

✅ Cover up to 500ft/150m in open space for wider placement options

✅ Pair one receiver with up to 20 magnetic door alarm sensors

✅ Use one transmitter with several receivers, or one receiver with several transmitters

✅ Set it up by plugging in the receiver and attaching the sensor

✅ Avoid holes or damage on doors when installing the sensor

The wireless receiver uses AC 100-240V power and works on 433 MHz. That makes it a practical fit for daily use in houses, apartments, offices, shops, warehouses, and similar spaces.

The sensor activates when the magnetic strip separates, so you get an immediate entry alert when a door opens. With 60 ringtones and mute-to-loud volume options, you can match the sound to your routine instead of relying on one fixed tone.

The 500ft/150m open-area range gives you flexibility for larger spaces, while the multi-receiver and multi-transmitter pairing keeps the system easy to expand where you need more coverage. The included setup keeps things simple and avoids extra mess.

Bring clearer door alerts into the spaces you want to keep under watch.