Wireless Motion Sensor Alarm, Motion Detector Door Chime for Business Entrances, Indoor Doorbell for Home Entry, Caregiver Pager Bed Alarm for Elderly Fall Prevention (1 Receiver + 1 Motion Sensor)

Large Wireless Range: Door Motion Alarm is triggered by the PIR sensor via monitoring movement, it has 110° wide angle Infrared which can cover 16-26 ft range, support 500 ft operating range between the receiver and motion sensor.
Easy Installation: The business motion door chime is mounted and works with 3*AAA battery and receiver plugs into a standard outlet. Support screw fixed or adhesive fixed and IP55 Waterproof, slide lock design easier to replace battery without separating screw and fixed plate.
House & Store Entrance: Our business doorbell has 5 level volume in 0-110 dB, up to 58 kinds of ringtones (Including ‘Welcome Rings’, which is special designed for commercial). Not only help you care of child/elderly, but also let you no more missed any customers.
Expandable: Flexible design according to your actual needs, choose the quantity of sensor and receiver you like, which can be freely matched with each other. Each receiver of motion door buzzer can work with 20 infrared motion sensor at most.
Long Lifespan: Our motion doorbell chime built-in energy-efficient circuit which makes it get more standby time. Low battery alert can remind you replace battery in time via flashing red light. We provide free return or replacement and 1 years warranty.