Daytech Motion Sensor Doorbell Wireless Alarm Hello Welcome Door Bell Entrance Infrared Sensor For Home Store Cafe Shop

[ Description] This product used advanced manufacturing technology. It has body sensing, high performance, energy-saving functions. It is without inadvertently touching or interference. And monitoring of human movement with in certain scope.It is very convenient for store,shop, restaurant and so on. With the Double-sided adhesive sticker, you can stick the door bell anywhere you want,or you can use the screws to fixthe bell on the wall, wood board,etc. [ package] 1x door chime (batteries are not included) 1X stick 1X screws [ specification ] Color: White Technology: Infraredsensing Body Detection Distance: 0-8 meter Size : 7cm7cm4cm Sound pressure:75db-95db5db Operating voltage: 3pc AAA batteries,or use a dedicated power adapter with DC:4.5V Multi-language: Chinese, English, Korean, Thai Body detection range:Left and right: 110degree ; Up and down: 60 degree