G202 4G GSM Controller Wireless Gate Relè Switch

It can be used to open gates, doors, or remotely control any type of device or appliance.
The relay is activated by a direct call to the card installed in the module or by SMS.

Activating by call is convenient because the module will not answer the call but will reject it after the first beep, thus avoiding call charges. After receiving the call, the module will send an SMS to the caller informing them of the relay's status.

All settings are made via SMS commands (you will receive a list of commands in the package), and security is ensured by the ability to register up to 999 users in the module's memory.

The module will only respond to commands received from registered numbers.
You can also make settings via SMS, such as how long the relay should remain activated.

The factory default time is 0.5 seconds, but it can be changed via SMS command (the time communicated via SMS represents a unit of 0.5 seconds, so to remain active for, for example, 10 seconds, you will need to send the command for twice as many seconds).

If you want the relay to remain active until the next call, the time is set to 0.
The module comes with a removable external antenna and a Nano SIM card slot.

The output relay has COM, NC, and NO ports.
A physical button can be connected to the module itself to activate the relay.

Specifications:
Model: G202 Plus
Supply voltage: 9 - 36 V DC, recommended 9 - 24 V DC
Supply current: recommended 2 A
Antenna: 50 Ω SMA
Frequency: Quad-band 850/900/1800/1900 MHz
Network: 2G/4G
Operating temperature: -20 / +60 °C
Humidity: 90%, non-condensing
Module Dimensions: 96.5 x 50 x 31.5 mm
Antenna Length: 107 mm
The G202 PLUS model is the 2023 updated version of the G202 model.