NB-IOT 4-20 mA Converter-Transmitter

NB-IOT Transmitter with one 4-20 mA interface, 2 digital and 1 analog inputs.


The 4..20mA to NB-IOT converter allows the transmission of any analog signal respecting the 4..20 mA current loop standard. This converter makes it possible to connect any sensor or actuator, through a pair of electrical conductors in which circulates a current whose intensity is proportional to the signal to be transmitted.
The 4-20 mA current loop is the most widely used principle in the industry because it allows linear representation of the signal to be measured. The intensity of the current is directly proportional to the intensity of the signal to be transmitted. The benefits are many. On the one hand, the current loop has the advantage, compared to the voltage loop, of not being affected by line losses. So we get better accuracy.
This NBIOT converter also has an analog input, 2 digital inputs and a hall sensor.

A PC configuration program, connected to the NB-IOT Transmitter, via a micro-USB port, allows the configuration of security/digital inputs and 4-20 mA interface. Data collection and data transmission frequencies may be specified as 2 independent parameters. Data are transferred through MQTT.

Use case of the NB-IOT 4-20 mA Converter-Transmitter

  • As a transmitter for industrial sensors probes with 4-20 mA interface
  • One 4-20 mA (2-wire) interface

NB-IOT 4-20 mA Converter-Transmitter Technical Specifications

  • Data collection every 5, 15, 30, 60min. 6, 12, 24 hours
  • Data transmission every 5, 15, 30, 60min. 6, 12, 24 hours
  • Data collection by time or event (digital inputs)
  • Battery powered (up to 2 years)
  • Storage of up to 100.000 data packets

We offer a comprehensive portfolio of Industrial LoRaWAN and NB-IOT IOT sensors. For more information and quotation, contact us!

Additional information


1-2 years


Outdoor. IP65


local (micro-USB)

Data Connectivity

NB-IOT (LTE) – Bands 1, 3, 5, 8, 20, 28

External Antenna

SMA connector

Operating Temperature

-40 / +85°C


6400 mAh


95 x 95 x 50 mm

About NB-IOT (LTE)

NB-IOT, or NarrowBand IOT is a new Low Power Wide Area Network (LPWAN) communication standard, developed by 3GPP, the standardization organization of the GSM standard.


NB-IOT, end of 2018, is deployed in many countries of the world. Belgium, Netherlands, Denmark, Finland, Sweden, Russia, China, Japan, Australia, Spain, Saudi Arabia, Switzerland, Thailand, UAE, Taiwan, South Korea, Singapore, Sri Lanka, Brazil, Italy, Poland, Slovakia, USA, Turkey, Belarus …


You can use this sensor with your own software platform or IOT solution.
You can also choose the IOT Factory software platform, which includes all the sensors presented here as standard. Among the available features:

  • Many pre-integrated sensors.
  • Javascript editor for decoding new payloads from any type of device.
  • Support for many LORAWAN Network Servers, but also SigFox, NB-IOT, M2M, Bluetooth, WIFI…
  • Customizable dashboards, configurable data processing and alerts, interactive and automated reports (web, pdf, excel), APIs
  • SaaS or on-premise
  • White labeling

The IOT Factory software platform is ideal for your projects in:

  • Smart Building
  • Smart Industries
  • Smart Logistics
  • Smart Construction

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