Smart Home window door  Magnetic Sensor AlarmOne Magnetic Sensor One Remote Controller

Features
1. Anti-theft alarm function; Entrance remind function 
2. One remote controller could control several magnetic sensors 
3. Excellent home use product tiny and fashion 
4. Volume: 110DB 
5. Alarm and door bell function for your option 
6. Low energy and long work time 
7. Simple install 
8. Application places: home, workshop office, store, etc

About the product
Increase remote controls: disassemble the battery of the magnetic alarm, and continually press the learning code button. Assemble the battery, and the magnetic alarm will sound BI one time to indicate that the alarm is open. And the magnetic alarm will sound Bi...BI...two times in 5 seconds the remote control is added successfully. (notes: one magnetic alarm can be matched with 8 remote control at most)

Notes
1. Only use in indoor, banned in outdoor use. 
2. Working environment temperature: -10 to 60 degree Celsius 
3. Working environment humidity: < 80 percent 
4. Storage temperature: -20 to + 70 degree Celsius