SA-O alarm host and its accessories have self-check functions, it will self check one time per 12 hours. 40 zones with LCD display ( 32 wireless zones and 8 wired zones) . It adopted double zones....
With over 20 years' experience in line of wire / wireless alarm systems, surveillance system and two-way speaking video and vision system, Shenzhen Security Group Co., Ltd. has become one of the....
5 LED display of defense zone Built-in dialer with built-in siren Telephone line anti-cut function Record your own personal message for ten seconds Up to 6 telephone numbers can be pre-stored in the....