... defence zones6 groups telephone NO.settingMain Features:> Defence area can be independent programming, built-in backup rechargeable ... this function).> 6 Methods of Disarming: single defenee area disarming, password keyboard disarming, remote disarming, fixed time ... kinds of defence area types: instant defence area,24 hours defence area,delay defenee area, gas calibration defenee area, access to play ...