Aoibox cord free Door Entry Chime with Magnetic Sensor 500 ft Range Plug In Receiver Adjustable Volume Alerts

Magnetic contact sensor detects when a door or window opens and triggers the receiver chime immediately for instant alerts in homes or businesses

Long-range signal connects the sensor and receiver across up to 500 ft for reliable coverage in large homes, offices, or storefronts

Select from multiple chime tones and adjust volume up to 110 dB to suit quiet spaces or busy commercial settings

Plug-in receiver features LED visual indicators that activate when the sensor is triggered, providing both audible and visual entry notifications

Pre-paired sensor and receiver enable quick peel-and-stick installation using the included double-sided adhesive on a door or window frame

Expandable system pairs with additional sensors to monitor multiple doors or windows, with different chime tones assignable to identify each entrance