Motion sensor doorbells and shop entry chimes.
Motion sensor doorbells and entry chimes sound a chime when someone walks through a doorway or passes a sensor, which alerts shop owners, receptionists and homeowners to visitors and customers, even when they are in another room. They are widely used in shops, cafés, clinics, offices and warehouses, as well as at home for monitoring children or elderly relatives. PIR sensors detect body heat, while infrared beam sensors trigger when a beam is broken across the doorway. Check the detection range, chime options, volume, power source and whether the receiver is separate before ordering. Wireless models are easy to install. Adjustable sensitivity reduces false alerts from pets.
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Related categories: Doorbells, Video DoorBell, Wireless Doorbell