Support: Wireless devices of the OR-AB-MH-3005 series ; Radio communication range (at open area): ~ 80 m ; Detection angle / Detection range: 140 ° / 10 m ; Main features: The detector can operate as a simple, wireless alarm control panel Built-in GSM communication module with the option of sending voice messages or SMS to max. 3 phone numbers Built-in alarm siren - 130 dB ; Operation temp: -10 °C ... 40 °C ;