Wireless Door Sensor Chime, GazingSure 1500Ft Range Wireless Door Alarm for Home/Office/Store, Door Open Chime Window Alarm, 2 Door Sensors & 1 Receiver

A Wireless Door Sensor With Strobe That You Can Rely On!
Business Grade Wireless Door Sensor:A Warehouse Doorbell, more specifically, a wireless one that works is hard to find.That’s because most products don’t have the range you need in a house, warehouse, store, shop, or business.Based on customer needs, GazingSure has created a doorbell kit designed for house, warehouses, shops, offices, hotels, classrooms, hospitals or other loud environments. Good for babies, the elderly, pets and etc.
Feature:✔Ultra-Long Wireless Range✔Interference-resistant Signal✔55 melodies to choose✔5 Volume Levels✔0dB Mute Mode✔LED Indicator
Specification:*Working Temperature: -22°F~158°F / -30°C~70°C*Working Frequency: 433.92MHz ± 280KHz*Working Distance: 1500ft/457m (in the open area)*Door Sensor Battery: 23A 12V Alkaline Battery (Include)*Receiver Voltage: 110-260V (Wide Voltage)*Installation Method: Self-Adhesive*Receiver Size: 2.95 x 1.97 x 0.94 (in)*Door Sensor Size: 2.7 x 1.7 x 0.6 (in)
Package Includes:2 x Door Sensors1 x Receiver2 x 3m Adhesives1 x User Manual
NOTE: Environmental factors and building materials will reduce maximum operating wireless range.