Engelmann Connect ComStar Wireless M-Bus Gateway (Remote AMR Data Collector)
 
Description:
The Engelmann Connect ComStar Gateway is a powerful data collector designed for automated remote readout of wireless M-Bus meters and sensors. It enables reliable collection of consumption data from energy, water, and heat meters and integrates seamlessly into modern AMR and AMI smart metering systems.
 
The ComStar gateway supports flexible data collection from wireless M-Bus compliant devices, making it ideal for building energy monitoring, district metering, and remote utility management. With support for LoRaWAN and LTE-M communication, the gateway can securely transmit collected data to remote platforms for monitoring, billing, and analytics.
 
Designed for flexible installation, the ComStar operates on a long-life lithium battery and can function independently without mains power. Its advanced configuration options allow customizable transmission intervals and remote parameterization, ensuring efficient data management in a wide range of smart metering applications.
 
Key Features:
Wireless M-Bus data collector for remote meter reading
Compatible with all wireless M-Bus compliant devices
Supports automated AMR / AMI consumption data collection
Handles up to 2500 connected devices
Flexible configuration of transmission and collection intervals
Remote parameterization and configuration
Installation mode for on-site communication verification
Data forwarding via MQTT, LoRaWAN or LTE-M
Built-in antennas for wireless communication
Optional external antenna support
Internal data storage with device whitelist / blacklist filtering
Secure and reliable communication for smart metering systems
 
Communication Interfaces:
Interface
Function
Wireless M-Bus
Data collection from meters
LTE-M (4G)
Data forwarding and firmware updates
LoRaWAN
Data transmission to IoT networks
MQTT
Data communication protocol
 
 
Technical Specifications:
Wireless M-Bus Frequency: 868 MHz
Wireless M-Bus Protocol: EN 13757-3 / EN 13757-4
Operating Modes: C1 / T1 / S1
LTE-M Frequency Bands: 791–969 MHz, 1710–1785 MHz
SIM Card Slot: Mini-SIM (2FF)
Output Power: 23 dBm
Sensitivity: −108 dBm
 
Power Supply:
Battery Type: 3.6 V Lithium battery
Standard Battery: 1 × D-cell (19 Ah)
Optional Battery Pack: 2 × D-cells (38 Ah)
Battery Life: Up to 12 years operation + 1 year storage
 
Environmental & Physical Specifications:
Protection Rating: IP65
Gateway Weight: ~0.329 kg (without batteries)
Operating Frequency: 868 MHz
 
Applications:
✔ Smart building energy monitoring
✔ Automated meter reading (AMR) systems
✔ Utility and municipal metering networks
✔ District heating and water metering
✔ Wireless consumption data collection for IoT platforms
 
Lead Time:
7-10 Days.