... Host (Keypad), Wireless Keypad (optional), Keychain Remotes, and phone calls. (PSTN alarm do not support SMS) 9) Available in AC\DC ... , Low-voltage alerts. One-Key arm, studies sensors to alarm host, very easy operation. 10) Non-volatile chip, information ... this function. 16) “Black Box” data record function, stores up to 99 alarm records and 99 arm\disarm records Technical Parameters ...