NB-IOT & LORAWAN Sensor Hub - MODBUS, 1-Wire, RS485, Pulse, Analog

The Sensor Hub is a universal data collection and transfer module running on the NB-IOT and LORAWAN network. It allows to connect sensors via MODBUS RTU, RS485, 1-Wire or via analog and digital inputs.


The NB-IOT & LORAWAN Sensor Hub is a data concentrator from probes, sensors or facilities connected via different protocols. RS485, MODBUS RTU, 1-Wire, or simply via Analog or Digital inputs. It allows you to configure the frequency at which data is read, and stored locally, and the frequency at which data is transmitted to your application, using the NB-IOT (LTE) network, as JSON documents sent in MQTT or through LORAWAN uplink payloads.

MODBUS RTU to NB-IOT converter


MODBUS is the most widely used standard communication protocol in the industry, for the supervision of industrial equipment. This is a data bus in which a “Master” can supervise and acquire “Slave” equipment data. MODBUS allows the exchange of data, either on Ethernet or on a Serial Port. MODBUS RTU is the communication specification via a serial port (RS485).


The NB-IOT Sensor HUB can read, store and transfer 10 “input registers”, “Discrete Inputs”, “Holding Registers” or “Coil Status”  MODBUS in MQTT through the NB-IOT network.

1-Wire to NB-IOT converter

1-Wire is a data communication bus for sensors. It is very popular, especially in the field of temperature probes, Dallas Keys (identification), or probes for measuring the voltage. The 1-Wire bus is simple to implement, just composed of 2 wires.
The NB-IOT Sensor HUB can read, store and transfer data from 10 probes / 1-Wire sensors, in MQTT through the NB-IOT network.

Conversion of Pulses, Analog and Digital Inputs to NB-IOT

The NB-IOT Sensor Hub has 2 analog inputs and 2 digital inputs. The digital inputs can be configured for counting electrical pulses.The NB-IOT Sensor HUB can read, store and transfer the analog and digital data in MQTT through the NBIOT network.
This LoRa sensor also has an internal temperature sensor, allowing a regular reading of the temperature at the location of the measurements made.

Use case of NB-IOT Sensor HUB

  • Collecting data from multiple sensors
  • Supervision of industrial machinery
  • Energy meters – water, gas, electricity

NB-IOT Sensor HUB Technical Specifications

  • MODBUS-RTU: reading of 10 “input registers”, “holding register”, “coil status” or “discrete inputs”
  • Data Transfer: MQTT / JSON
  • 1-wire: reading of 10 1-wire sensors
  • Digital input (dry input): 2. Or 2 impulse counters
  • Analogical Inputs: 2
  • Measurement of the ambient temperature
  • Local storage and asynchronous transfer
  • NB-IOT: LTE bands: 1, 3, 5, 8, 20, 28
  • External antenna to ensure optimal coverage
  • Internal battery power supply or external power supply

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

Additional information


APN, User & Password, OTAA or ABP

Data Connectivity

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


LORAWAN Downlink message, local (micro-USB) or Dip Switch

External Antenna

Antenna provided, SMA connector


Outdoor. IP65

Operating Temperature

-40 / +85°C


6400 mAh. Or external power: 4,5..55V


120mm x 100mm x 60mm

Power Output

Default: 25 mW. Max: 100 mW.

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 …

About LoRaWAN

The LORAWAN communication network (also called LORA) is a wireless communication network dedicated to the Internet of Things. It allows the transmission of small data packets over large distances (up to 15-20km). It consumes little energy, and allows sensors to operate on battery power for up to 10 years.

LORAWAN® is also particularly well suited to communication in buildings.

The success of LORAWAN® comes from its ease of implementation, in the form of a private network.  There are also LORAWAN® public networks in some countries, such as:


  • In Belgium and Luxembourg, Proximus operates a nation wide LoRaWAN network.
  • In France, Orange and Bouygues operate a LoRaWAN network.
  • In the Netherlands, KPN is the main LoRaWAN operator.
  • In Switzerland, SwissCom is the main LORAWAN operator
  • LoRaWAN is available in most Countries (Spain, http://localhost/products/private-lorawan-network/Andorra, Italy, Bulgaria, Czech Republic, UK, Ireland, Iceland…). Worldwide.

If there is no LoRaWAN coverage in your country/region, it is also possible to deploy a private LoRaWAN network.

Contact us if you have questions about the LORAWAN coverage in your region.


This sensor is integrated, as standard , into the IOT Factory software platform.
It is also used in our solutions: