Stainless Steel Door Intercom | Communication Products Supplier | GAINWISE

Stainless Steel Door Intercom manufacturer - GAINWISE. GSM Stainless Steel doorbell supply - Our GSM Door intercom is a new entrance intercom system working on the GSM/CDMA network. It is like door station of intercom system but it does not need communication with another home station. Your mobile phone replaces the home station. You can answer the door and talk with the visitor from any location when someone visit, and SS91B also provides the access control feature for 1152 users. 25 years manufacturer of EN 301 511 and CE certified 4G video intercom, 4G smoke detector and other related communication products with security and communication solutions. Main communication product, including door intercom, GSM/3G access controller, GSM fixed wireless terminal, wireless smart home, GPS tracking, GSM 4G smoke detector, GSM / 3G modem & router, wireless service bell intercom and so forth.