4G LTE universal IO module TCG120-4G

4G LTE universal IO module TCG120-4G

SKU: TCC-039

TCG140-4G is a 4G LTE universal IO module for remote monitoring and control over cellular networks. It has digital I/Os, analog inputs and utilises 1-Wire interface. The module supports MQTT, SMS alarm, HTTP/HTTPS post and API commands.

  • Manufacturer: Teracom
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TCG120-4 is a 4G LTE wireless I/O module. The input/output peripherals of the device include 2 digital inputs, 2 analog inputs, and two relays with normally open and normally closed contacts. The module also supports a 1-Wire interface for up to 4 sensors.

The initial setup of the device is made through the graphical interface using a standard browser. On the field, the device can be set up remotely either with SMS or HTTP API commands.

The device can operate in offline mode. In this mode, the relays can be activated by the alarm state of any of the monitored parameters – digital/analog inputs or sensors. In this way, the device can directly control some processes.

4G LTE wireless I/O module may be part of supervisory control and data acquisition systems. For this purpose, the supported protocols for M2M communication are used – HTTP API and MQTT.

In the case of HTTP API is used, the module periodically sends its whole status via XML or JSON file. While if MQTT is used, only a specific parameter can be sent. MQTT is optimized to work on networks with even the scarcest of bandwidth. 


  • Multi-band connectivity;
  • Setup via USB, SMS, and HTTP API;
  • 2 digital "dry contact" inputs;
  • 2 analog inputs with 0 to 60VDC range;
  • 2 relays with NO and NC contacts;
  • 1-Wire support for all Teracom sensors (up to 4 sensors);
  • MQTT 3.1.1 support;
  • SMS alarm alerts for up to 5 numbers;
  • Email alarm alerts for up to 5 email recipients;
  • Periodical HTTP/HTTPS Post with current status in XML or JSON file to a remote server;
  • HTTP API commands;
  • Firmware update over USB or Internet.
    • SKU
    • Weight
      0.25 kg
    • Dimensions (L x W x H)
      13 x 11 x 5 cm
  • Power Supply: 10 to 32 VDC at 300 mA
  • 4G LTE Band: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B34/B38/B39/B40/B41
  • Input: 2 digital inputs with "dry contact" and "logic level" modes
  • Input: 2 analogue inputs with 0 to 60 VDC
  • Contacts: 2 relays with NO and NC  
  • Relay rating: 30 VAC, 24 VDC, 3 A
  • Dimensions: 109 x 65 x 32 mm, 152g
  • Operating temperature: -20 to +55 °C (0 to 40°C for USB), 5 to 85% ambient humidity (non-condensing)

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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