Warm prompt: this door detector need work together with 433MHz alarm system or wireless siren.

Product description

-> Wireless Door/ window entry detector
-> For home GSM/PSTN alarm system
-> Condition: Brand new
-> These sensors are used to protect the opening of both doors and windows.
-> Easily mounted by adhesive tape to window or door

Product Features

-> Working frequency: 433MHz
-> Power supply: 3V CR2032 battery (battery not include)
-> Working distance: over 80 meter (open environment)
-> Working temperature: -10 - 50
-> Color: white, as pictures

Product Include

1 * Wireless door / window sensor.
1 * Double-sided tape.