Engelmann Radio WaterStar M Smart Water Meter (Wireless M-Bus / Hot & Cold Water)
 
Description:
The Engelmann Radio WaterStar M is a radio-integrated electronic water meter designed for accurate and reliable measurement of water consumption across a wide range of installation environments. Suitable for both cold and hot water applications, the meter is available with single-jet and multi-jet flow sensors, ensuring precise measurement in residential, commercial, and industrial systems.
 
The WaterStar M features an integrated wireless M-Bus communication interface compliant with the OMS (Open Metering System) standard, enabling secure and dependable remote data transmission for automated meter reading (AMR) and smart metering platforms.
 
With inductive impeller scanning, automatic leakage and tampering detection, and long-life lithium battery operation, the WaterStar M delivers high measurement accuracy, reliable remote communication, and efficient consumption monitoring for modern water metering systems.
 
Key Features:
Radio-integrated electronic water meter
Suitable for all common installation points
Compatible with cold and hot water systems
Available with single-jet and multi-jet flow sensors
Offered as inline meters and measuring capsule meters
Integrated wireless M-Bus communication interface
OMS compliant radio protocol
Secure and reliable remote data transmission
Clear LCD display with rotating display (360°)
Inductive impeller scanning for precise measurement
Return flow detection
Automatic leakage detection
Tampering detection for system security
Individually configurable radio parameters via software or app
Long-life lithium battery with up to 12-year operation
Made in Germany
 
Measurement & Metering:
Measurement method: Inductive scanning
Unit: m³
Mechanical class (MID): M1
Electromagnetic class (MID): E1
Environmental class (MID): B
Pressure class: MAP16
Mounting position: Horizontal or Vertical
 
Communication:
Interface
Function
Wireless M-Bus
Remote meter reading
Optical Interface
Local configuration and readout
 
Radio modes supported:
C1
T1
 
Technical Specifications:
Protection Rating: IP68
Power Supply: 3 V Lithium battery
Battery Life: Up to 12 years (depending on radio configuration)
Display: LCD with 8 digits + special characters
Display Rotation: 360°
 
Operating Conditions:
Cold Water Version: T30 (0.1°C – 30°C)
Hot Water Version: T30 / 90 (30°C – 90°C)
Ambient Operating Temperature: 5°C – 55°C
Storage Temperature: −25°C – 70°C
 
Meter Variants:
Available as:
Inline meters
Measuring capsule meters
Measuring capsule meters with converter
 
Sizes:
DN15
DN20
 
Typical flow performance:
Q3: 2.5 – 4.0 m³/h
Low flow threshold: 6 l/h
Ratio: R160 (horizontal) / R80 (vertical)
 
Applications:
✔ Smart water metering systems
✔ Residential and apartment sub-metering
✔ Commercial and industrial water monitoring
✔ Automated Meter Reading (AMR) platforms
✔ Wireless M-Bus smart metering networks
 
Lead Time:
7-10 Days.