G202 2G Remote Control 200 Users GSM Gate Opener Relay Switch Door Access Wireless Door Opener By Free Call 850/900/1800/1900MHz Feature: Add or remove users via SMS text commands. Relay close or open time is programmable. Can be operated anywhere, no distance restrictions. Quad-band, compatible with global GSM networks. No need for remotes or buttons for different users. Uses caller ID for identification; unknown callers are ignored. Up to 200 authorized phone numbers can be configured. One output with a relay rating of 3A/240VAC for connecting a door or machine switch. Suitable for multiple applications including doors, bollards, barriers, garage doors, shutters, and access control systems. Relay action can send an SMS confirmation to the owner or authorized phone; this feature is user-configurable. Operates using free calls; the system recognizes authorized numbers and performs open/close operations on the first ring. Specification: GSM frequency: Quad-band 850/900/1800/1900MHz Network: 2G Output: NC/NO dry contact, 3A/250VAC DC power supply: 9-24VDC/2A Power consumption: 12V input, maximum 50mA / average 25mA SIM card: Supports 3V SIM card Antenna: 50SMA antenna interface Temperature range: -20°C to 60°C Humidity range: Up to 90% relative humidity Material: Plastic Dimensions: 96.5 x 50 x 31.5mm Description: The GSM door opener is a reliable GSM relay designed for authorized access control, operating doors, switching remote devices, and managing parking systems. It enables remote on/off control of machines or devices using free calls from a mobile phone. Package Includes: 1 x G202 GSM Door Opener 1 x Gain Antenna 1 x Instruction Manual