Detailed Product Description

 a. it has 4 wired zone, 10 wireless zone,  ( you can connect 1 or more sensors to each zone)

 b. 4 groups of telephone number can be setted, (you can set 4 groups of telephone number  when there's warning the telephone will inform the monitor center at the same time.

 c. Alarm priority. ( If you are talking through that telephone but at the same time somebody intrude into your house, the host will cut your talking and warn you there's intruders)

 d. Can restore 112 events.

 e. high-frequecy 315MHZ

 f. Anti-tamper. (If somebody want to tear down the host, the host will warning)