IMST | Wireless M-Bus Range Extender (with LoRaWAN®) 404600

The Wireless M-Bus Range Extender is a compact and cost-effective device that collects wireless M-Bus messages from utility meters and forwards them to a LoRaWAN® network.

The Range Extender allows a flexible configuration of calendar events for Wireless M-Bus reception windows as well as device filtering by Manufacturer ID and Device ID to select specific groups of meters. Even large Wireless M-Bus messages with maximum payload size can be forwarded with LoRaWAN® radio packets by means of an integrated segmentation and reassembly protocol.

(VAT excluded)
In stock
Usually delivered in 5 working days
Commercially available
This product is already in mass production. Production batches are in route or stock is available. All certifications for the regional areas where the products are sold are obtained from competent institutions.

Key features highlights :

  • WM-Bus S and combined C/T Mode supported
  • WM-Bus telegram format: A and B
  • LoRaWAN® Activation: ABP and OTA
  • EU868 LoRaWAN® Compliant (v.1.0.2)
  • Flexible configuration of calendar events and device whitelist
  • Confirmed Upload of WM-Bus messages
  • Ultra low power for long battery life

Description :

The Wireless M-Bus standard (EN 13757-4) is used in many wireless sensor and smart meter applications. These meters and sensors are communicating according to defined radio operation modes based on a standard FSK modulation with more or less range to the corresponding receiving unit.

The LoRa® modulation is a perfect mean to increase the range of wireless communication systems. The Wireless M-Bus Range Extender combines the two existing modulation technics and required communication protocol stacks in one single device.

A typical usecase for this product is the forwarding of WM-Bus messages of a configurable group of sensor / meter devices. This bridge offers a flexible way to define hourly, daily, weekly or monthly reception windows for sampling of WM-Bus messages and a large data memory for temporary buffering. Even large WM-Bus messages with maximum payload size can be forwarded with small LoRaWAN® radio packets by means of an integrated segmentation and reassembly protocol.

Besides LoRaWAN® a proprietary Point-to-Point and Point-to-Multipoint protocol (LR Base) can be selected for local configuration and message forwarding (on request)


Use cases:

  1. Smart Meter Data Collection: The Range Extender can collect Wireless M-Bus messages from utility meters, such as electricity, gas, or water meters, and forward them to a LoRaWAN® network. This enables remote and automated smart meter data collection, improving efficiency and accuracy in utility billing.

  2. Wireless Sensor Networks: The device can be used to extend the range of wireless sensor networks based on the Wireless M-Bus standard. It allows sensors in remote or hard-to-reach locations to communicate with central monitoring systems via the LoRaWAN® network.

  3. Smart Grid Integration: The Range Extender facilitates the integration of smart meters and sensors into smart grid infrastructures. It enables real-time data transmission, supporting grid optimization, demand-side management, and load forecasting.

Specifications :
Seller IMST GmbH
Manufacturer Name IMST GmbH
SKU 77-11772
Manufacturer Part Number 404600
Seller SKU 404600
Product Attributes Metering, Bridges
LoRa Class Class A
Other Protocol M-Bus
Solution Represented Smart Cities, Home, Facilities Management, Smart Metering
Power Supply Non rechargeable battery
Battery Specification (Wh) 19
Battery Type Lithium ion
Antenna Integrated
RF Transceiver SX1272
Operating Temperature (Min to Max) -10 °C to +55 °C
Depth (cm) 92 mm
Width (cm) 55 mm
Height (cm) 145 mm
Lead-time if in stock (in working days) 5
Technical Documents

Seller conditions Seller commercial condition
Seller shipping condition
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