HC-003-55 LoRaWAN
- LoRaWAN module for automatic reading with MULTICAL® 403
- OMS data protocol available for End-to-End security and interoperability
- Up to 16 years of battery lifetime, wMBus C1 OMS fallback and high datagram configurability including E8 and E9
- Easy key handling via Kamstrup KEM.2 file to any MDM
Description
The LoRaWAN® module enables secure and energy-efficient long-range communication for Kamstrup’s MULTICAL® 403 series of heat and cooling meters at 868 MHz.
It is designed to meet modern requirements for remote meter reading, data integrity, and cybersecurity, while maintaining full backward compatibility with existing installations.
The module supports unidirectional LoRaWAN communication, allowing meter data to be transmitted reliably to the head-end system (HES) without the need for bidirectional control. In addition, the module includes wireless M-Bus OMS C1 interfaces, providing local readout, on site configuration, and a robust fallback solution if LoRaWAN connectivity is temporarily unavailable.
Security
Security is an integral part of the design. All LoRaWAN and OMS encryption keys are generated directly from the meter’s internal Data Encryption Key (DEK) or derived through the Kamstrup Security Concept, ensuring complete traceability, authentication, and protection of sensitive data throughout the device’s lifecycle.
The flexible configuration concept allows utilities to tailor transmission intervals, data content, and adaptive data rate (ADR) settings to match network conditions and energy requirements. With a highly optimised power profile, the LoRaWAN module ensures long battery life and stable performance even in challenging RF environments.
Module Comparison
Kamstrup LoRaWAN HC-55
Meter support
- MC403
- Expected in Q3-2026
- MC603
- MC803
Data protocol
Open OMS over LoRaWAN
Security
2 options:
- End-to-end with OMS Security Profile D on application layer
- Meter-to-network server without application layer encryption
Datagram Options
- Kamstrup standards (incl. E8 & E9)
- Custom available from factory
- Multiple transmission packages to transmit actual data often and monthly data less to optimise battery and network load
Fallback
Wireless M-Bus OMS C1
Battery life
16 years (Normal Mode)
Key handling
Kamstrup KEM.2 file
2-way functionality
- Clock adjustment
- More on roadmap
Installation
- CALL via meter buttons + display indices for on‑site link check
- Automatic CALL when flow is detected
MDM-system support
- Kamstrup READy
- Elvaco EVO (expected from H2026)
- 3rd party
Elvaco CMi4140 LoRaWAN module for Kamstrup MULTICAL 403/603/803
Meter support
MC403, 603 and 803
Data protocol
Elvaco proprietary with open implementation guide
Security
Meter-to-network server without application layer encryption
Datagram Options
- Elvaco standards
- Limited transmission package
Fallback
None
Battery life
12 years (only in EcoMode)
Key handling
Via Elvaco EVO platform
2-way functionality
- Pre-defined datagram reconfiguration
- Transmit interval
- EcoMode
- Time + UTC offset
- Reboot
Installation
NFC via Elvaco OTC smart phone app or meter buttons
MDM-system support
- Elvaco EVO
- 3rd party