Teracom GSM-GPRS Remote Monitoring TCG120


Model TCG120 Note: This device is 2G only. 2G is no longer supported in the USA

Please use the new Model TCG140-4a. This brand new unit is 4G and made to work in the USA.

Controller for environmental monitoring, remote control, data acquisition, home and office alarm systems over GSM/GPRS.

Short Description

The TCG120 is an I/O controller for GSM-GPRS remote monitoring and control over mobile networks. It has two digital inputs, two analog inputs. Its' 1-Wire interface supports up to four Teracom humidity and temperature sensors. It’s two relays have normally open and normally closed contacts.

The relays can be activated either remotely (via SMS or HTTP API command) or locally – from the status of the monitored parameter. Only one parameter can manage the relay at a time, but for every parameter an e-mail can be sent or SMS for alert conditions.

The TCG120 can initiate a connection (HTTP Post) to the remote dedicated servers. The payload of this post is an XML file, with current values of monitored parameters.

An HTTP post can be sent periodically or on previous set alarm conditions. This is very useful in client-server systems for GSM-GPRS remote monitoring and control.

The controller can be used as a standalone device or as a part of data acquisition (SCADA) systems.

For more details, see the pages of specific products.


* Quad-bands GSM connectivity;
* Setup via USB (Windows setup program) or SMS;
* 2 digital inputs with ” dry contact” and “logic level” modes;
* 2 analog input with 0 to 60VDC range;
* 2 relay output with NO and NC contacts;
* 1-Wire support for up to 4 Teracom temperature and humidity-temperature sensors;
* SMS alarm alerts (up to 5 numbers);
* Email alarm alerts (up to 5 email recipients), SMTP with TLS support;
* Single call control – the relays can be controlled with a single call from up to 100 numbers;
* Push mode – XML data is sent via HTTP post to a remote server;
* HTTP API commands;
* Firmware update over USB or GPRS.

Supported sensors

* 1-Wire temperature sensor TST100
* 1-Wire temperature sensor TST103
* 1-Wire humidity and temperature sensor TSH202
* 1-Wire humidity and temperature sensor TSH206

* Cellular interface Standards: GSM/GPRS Bands: 850/900/1800/1900 MHz GPRS multi-slot class: 12, 1~12 configurableGPRS terminal device class: Class B Compliant to GSM Phase 2/2+: Class 4 (2W@850/ 900MHz), Class 1 (1W@1800/1900MHz)SIM card size: Standard Antenna connector: SMA-F

Warranty period: 3 years

Click here for Example application:

Click here for Manual:

Please click below for complete product information at Teracom.

  • Model: TCG120
  • Shipping Weight: 1lbs
  • Manufactured by: Teracom