Door Sensor Chime, Motion Detector Door Alarm Door Entry Welcome Greeting Doorbell Entry Alert Chime When Door Opens for Business Home Store

• Entry Alert Door Chime: This door entry chime sounds a crisp bell to remind you when someone walks into your store. You will never miss any customers(visitors).
• High Sensitivity: With the 110° wide angle detection range of store sensor chime, effective real-time monitoring of human movement within the monitoring range.
• All-day Sensing: Door open alarm will not affected by light, can be sensed at day and night. Keep you informed of intruders or visitors anytime.
• Wide Application: Door alert for business is suitable for store, shop, office, restaurant, hotel, factories and other occasions.
• Wire Free Installation: Battery operated door alarm (3 * AA battery not included) can be mounted on any wall or door or window.

Features: Infrared sensor with strong sensitivity, it will not affected by light,can be sensed at day and night. Strong sensitivity, no false alarm, anti-interference. Effective real-time monitoring of human movement within the monitoring range. Human body infrared automatic sensing, widely used in stores, homes, office buildings, factories and other occasions. Keeps you aware of intruders or visitors anywhere around your home. Specification: Condition: Brand New Material: ABS Plastic Color: White Detection Angle: Horizontal: 110° Power Supply: 3 * AA Battery (not included) Detection Distance: Approx. 5m/16.4ft (when temperature is high in summer, distance may be shortened a little, which is a normal phenomenon, and temperature will recover when it drops) Package Weight: Approx 171g/6.0oz Package list: 1 * Welcome Sensor Note: 1. When the temperature is high in summer, the distance may be shorter. This is a normal phenomenon. When the temperature drops, it will recover. 2. Not including batteries! 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.