If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy  Wireless Door & Window Contact Alarm EDM 03203  at an unbeatable price.

Colour: White
Number of batteries: 3
Battery operated: Yes
Battery type: LR44
Batteries included: Yes
Characteristics: On/off button
Functions: 
Visitor announcer
Sound
Approx. dimensions: 10 x 14 cm
Voltage: 12 V
Range: 8 m