We are CHUANG ELEELETRONIC CO., LTD based in Fuzhou , China. We are member of Tradekey.com since November, 2009. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in home security. Please find our product details below: wireless intruder alarm system Alarm Communication Mode Dial through PTSN Alarm Communication P rotocol CHUANGO CID+PRO, ADEMCO CONTACT ID Zone Number 6 wireless zone+1*24h zone Programming Mode By separate telephone keyboard Alarm Message Recording 8 Wireless Receiving 315MHZ(433MHZ Option)by auto-recoding RF Code Combination 100000 non-repeating combinations Allowed Amount of Expandable Wireless Accessories 60 If Support Wireless Siren yes If Support Remote Dvr Recording yes Siren Current(Max) 450ma Operation Temperature Operation Humidity Power Supply DC12V/500MA External Backup Battery UPS-12V Installation on the wall or desktop Control Panel Material ABS plastic Control Panel SIZE 140*105*38mm wireless intruder alarm system Alarm Communication Mode Dial through PTSN Alarm Communication P rotocol CHUANGO CID+PRO, ADEMCO CONTACT ID Zone Number 6 wireless zone+1*24h zone Programming Mode By separate telephone keyboard Alarm Message Recording 8 Wireless Receiving 315MHZ(433MHZ Option)by auto-recoding RF Code Combination 100000 non-repeating combinations Allowed Amount of Expandable Wireless Accessories 60 If Support Wireless Siren yes If Support Remote Dvr Recording yes Siren Current(Max) 450ma Operation Temperature Operation Humidity Power Supply DC12V/500MA External Backup Battery UPS-12V Installation on the wall or desktop Control Panel Material ABS plastic Control Panel SIZE 140*105*38mm Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.