... off. 7. Telephone manages the alarm system, convenience.8. Phone trunks protected to avoid any designing destroy. 9. LED on the ... products are Home PSTN/GSM Security Alarm System, 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter/ ... on. We can also research and develop wireless remote control system based on clients’ needs, which are widely used in ...