Smoke sensor Wired/wireless defense zones, which are compatible Diy project users can add/delete detectors/sensors freely Has many arming methods such as away arming, stay arming, -hour arming, away/stay arming and separate arming Long distance operation to the main panel by password Can freely select entry delay timer, exit delay timer, the time of siren sounds Program alarming phone numbers, can alarm automatically when the phone line is disconnected or destroyed record message for seconds Time auto-adjusted with fsk caller id All the info stored will not lose when power off Can store items info about arming, disarming, alarming and the number of remote controls, the type and number of detectors and so on Support connecting to monitoring receive center with ademco contact id, bsia fast format protocol Built in ni-h chargeable battery auto chargeable/ dischargeable Built in db siren, wired/wireless siren selected mute alarm and audible alarm is at user's option