... the updated advanced GSM prepaid module made by Shenzhen ABS Technology CO.,LTD. It features eleven different wireless protection zones, two ... . compatible with CCTV surveillance and centre monitoring system.1. Wireless type, easy to install, without phone line.2. Remote ... .9. Panel Size: 180mml×130mmw×32mmh10.Standard package : one GSM module ,one remote keyboard, two remote controllers, one PIR, one ...