Metering Products

Precision Meters for
Every Application

From BTU heat meters to ultrasonic water meters — MID-certified, field-proven hardware trusted across district cooling, commercial buildings and utilities.

BTU / Heat Meters

Thermal Energy Measurement

Static ultrasonic BTU and heat meters for district cooling, central heating and commercial energy sub-metering. MID-certified, no moving parts.

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QUNDIS Q heat 5.5 US M-Bus
QUNDIS
Q heat 5.5 US M-Bus / Impuls-IN
Integrated Static Ultrasonic Heat & Cold Meter

All-in-one static ultrasonic heat and cold meter with integrated M-Bus interface and two pulse inputs. All-metal flow sensor, contamination-resistant, any installation position including overhead. Detachable calculator unit for tight spaces.

Nominal DN
DN15 – DN40
Flow Rate (Qp)
0.6 – 10.0 m³/h
Accuracy Class
Class 2 / Class 3
Temp Range
5°C – 90°C (flow sensor)
Calc. Temp Range
0°C – 105°C
Temp Diff Range
3 K – 70 K
Max Pressure
16 bar (PN16)
Battery Life
7 years (opt. 10 yr)
M-Bus Readouts
Up to 96/day (15 min)
Pulse Inputs
2 × (EN 1434-2, Class IB)
Display
8-digit LCD + pictograms
Protection
IP65 (calc. & sensor)
M-Bus2 Pulse InputsMID 2014/32/EURoHSIP65PN16Any Position
QUNDIS Series 473 Split Ultrasonic Flow Sensor
QUNDIS
Ultrasonic Volume Measuring Parts Series 473
Split Ultrasonic Flow Sensor — All-Brass, MID Class 2

MID-compliant all-brass ultrasonic flow sensor for split heat/cold meter systems. Covers qp 0.6–100 m³/h across DN15–DN100, dynamic range up to 1:250, medium temperatures to 150°C. Thread (PN16) and flange (PN25) versions. Integrates with QUNDIS R20/R21 calculator and walk-by / AMR radio modules.

Nominal DN
DN15 – DN100
Flow Rate (Qp)
0.6 – 100 m³/h
Accuracy Class
EN 1434 / MID Class 2
Dynamic Range
1:100 (opt. 1:250)
Temp (Heat)
5°C – 130/150°C
Temp (Cold)
5°C – 50°C
Max Pressure
PN16 (thread) / PN25 (flange)
Body Material
Brass (all sizes)
Interface
Open Collector Pulse
Pulse Cable
2.4 m (4-wire)
Power Supply
3.0 – 5.5 V DC (external)
Protection
IP54
MID DE-07-MI004-PTB022EN 1434 Class 2IP54Brass BodyAny PositionThread & Flange
Water Meters

Ultrasonic Water Metering

MID-certified static ultrasonic water meters for residential sub-metering through to large-volume utility and industrial bulk metering. IP68, no moving parts, multi-protocol radio communication.

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Maddalena ElecTo SONIC Ultrasonic Water Meter
maddalena
ElecTo SONIC
Electronic Ultrasonic Smart Water Meter

Static ultrasonic meter with built-in multi-protocol radio (wM-Bus + LoRaWAN + NB-IoT). No moving parts, insensitive to water chemistry, ideal for utility AMR/AMI deployments. 9-character LCD, 11,000+ value datalog, NFC interface, comprehensive fault detection.

Nominal DN
DN15 – DN50
Q3 (Nominal)
1.6 – 25 m³/h
MID Class
R max 800
Accuracy (Q2–Q4)
±2% (≤30°C) / ±3% (>30°C)
Temp Class
T50
Nominal Pressure
16 bar
Battery Life
16 yr (wM-Bus/LoRa) / 13 yr (NB-IoT)
Datalog
>11,000 values
Display
9-character LCD
Local Interface
NFC
Installation
Any position (U0–D0)
Protection
IP68
wM-BusLoRaWANNB-IoTNFCMID R800IP68T50
Maddalena E-BULK Bulk Ultrasonic Water Meter
maddalena
E-BULK
Large-Volume Ultrasonic Bulk Water Meter

Heavy-duty static ultrasonic meter for large-volume cold water metering in utilities, industrial and commercial networks. Extremely low starting flow, wide measuring range, no moving parts. Renders mechanical and combined meters obsolete. Available with wM-Bus, LoRaWAN or NB-IoT (Split modules) and optional 4–20 mA output.

Nominal DN
DN50 – DN400
Q3 (Nominal)
25 – 2500 m³/h
MID Class
R max 800
Accuracy (Q2–Q4)
±2% (≤30°C) / ±3% (>30°C)
Temp Class
T30 / T50
Nominal Pressure
16 bar
Battery Life
13 years
Analog Output
4–20 mA, 24 V passive (opt.)
Comms (Split)
wM-Bus / LoRaWAN / NB-IoT
Installation
Any position (U0–D0)
Pulse Output
1P=10 L (DN50–100) / 100 L (DN125+)
Protection
IP68
wM-BusLoRaWANNB-IoT4–20 mAMID R800IP68DN50–DN400
Smart Shutoff Valves

Automated Leak Prevention

Motorised ball valves with M-Bus or LoRaWAN communication for remote control and automated leak isolation. Wired and wireless options available.

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Basiox
Wired M-Bus Shutoff Valve
DN15 to DN40

Motorised ball valve with integrated M-Bus for remote open/close and status monitoring. Ideal for residential and light-commercial sub-metering systems.

DN
DN15 – DN40
Actuation
< 5 sec full stroke
Power
24V DC (M-Bus)
Body
Brass
Pressure
PN16
Protection
IP65
M-BusIP65PN16DN100 on request
Basiox
Wired M-Bus Shutoff Valve
DN50 and Above

Heavy-duty motorised ball valve with M-Bus interface for large-diameter pipework. Built for commercial, industrial and district cooling applications.

DN
DN50 – DN100
Actuation
< 10 sec full stroke
Power
24V DC / 230V AC
Body
Brass / Stainless Steel
Pressure
PN16
Protection
IP65
M-BusIP65Flanged/Threaded
Basiox
LoRaWAN Shutoff Valve
DN15 to DN80 — 230V / 50Hz

Wireless motorised shutoff valve with integrated LoRaWAN — no M-Bus cabling required. Long-range remote control up to 5 km for automated leak isolation.

DN
DN15 – DN80
Protocol
LoRaWAN Class A/C
Range
Up to 5 km
Power
230V AC / 50Hz
Pressure
PN16
Protection
IP65
LoRaWANWirelessIP65DN100 on request
M-Bus Gateways

Data Collection & Connectivity

Robust M-Bus data concentrators that aggregate readings from large meter networks and forward them to BMS and billing platforms via Modbus, MQTT or BACnet.

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Basiox
BC-Master 250
M-Bus Data Concentrator

Aggregates readings from up to 250 wired M-Bus meters and forwards data to head-end and BMS platforms via Modbus TCP/IP, MQTT or BACnet. DIN-rail mounted, supports 4G cellular.

Capacity
250 M-Bus slaves
Output
Modbus TCP / MQTT / BACnet
Network
Ethernet / Wi-Fi / 4G
Mounting
DIN-rail
Power
100–240V AC / 24V DC
Protection
IP30 (panel)
250 MetersModbus TCPMQTTBACnet4G