Water
Automatically read and monitor water meters and detect system issues and leaks at an early stage. At ZENNER we offer a comprehensive solution for measurement technology and system solutions. Innovative M-Bus and radio solutions, the Internet of Things (IoT) and in particular LoRaWAN® technology offer a wide array of options.
EDC-communication module with M-Bus interface and electronic pulse outputEDC-communication module with M-Bus interface and electronic pulse output
For connection to ZENNER water meters with modulator disc
Water meters MTKD-M (-CC) and MTKD-NWater meters MTKD-M (-CC) and MTKD-N
The MTKD is a multi-jet water meter for cold potable water. The MTKD-M (-CC) is equipped with an 8-digit dry dial meter register and a modulator disc for remote reading of meter …
Positive Displacement water meter RTKP-MF-M-CCPositive Displacement water meter RTKP-MF-M-CC
The RTKP-MF-M-CC is a manifold-type rotary piston dry-dial meter for cold water. Electronic, non-reactive scanning enables remote reading of meter data via radio with LoRaWAN® or …
Piston type water meter RNK-RP-NPiston type water meter RNK-RP-N
Volumetric Rotary Piston Meter RNK-RP-N is a water meter for cold potable water with protected dial and brass body. RNK-RP-N is retrofitable with pulser (reed) for remote readout …
Ultrasonic apartment / domestic water meter IUWSUltrasonic apartment / domestic water meter IUWS
The IUWS ultrasonic water meter guarantees reliable recording of the meter data for individual consumption billing in the residential or domestic water sector.
Ultrasonic bulk water meter IUWUltrasonic bulk water meter IUW
The IUW ultrasonic bulk water meter is used to record high and fluctuating flows in drinking water distribution and in industry, with a very low pressure loss at the same time.
Water meters MTKD-M-ST AND MTKD-N-STWater meters MTKD-M-ST AND MTKD-N-ST
The MTKD-ST is a multi-jet dry dial meter for cold water in a standpipe design. MTKD-M-ST is equipped with an 8-digit dry dial meter register and a modulator disc. This enables …
Hot water meter MTWD-M-ST and MTWD-N-STHot water meter MTWD-M-ST and MTWD-N-ST
MTWD-ST is available in two versions: MTWD-N-ST with 7-digit rollers and magnet pointer for pulse output. MTWD-M-ST with 8-digit rollers register and modulator disc for …
Bulk water meter WPD / WPHDBulk water meter WPD / WPHD
WPD / WPHD is a smart Woltman bulk water meter for the measuring of high flow rates with parallel turbine shaft. It is prepared for remote reading via wired M-bus, wireless …
Bulk hydrant water meter WPD-HYBulk hydrant water meter WPD-HY
Woltman meter with a parallel to flow direction arranged turbine
Hot water meter MTWD-M-CC and MTWD-NHot water meter MTWD-M-CC and MTWD-N
MTWD-N is a multi-jet dry dial meter for hot water with flood-proof (IP68) hermetically sealed glass/copper register
Hot water meter MTWD-FA-M and MTWD-FA-NHot water meter MTWD-FA-M and MTWD-FA-N
MTWD-FA is available in two versions: MTWD-N-FA with 7-digit rollers and magnet pointer for pulse output. MTWD-M-FA with 8-digit rollers register and modulator disc for …
Bulk water meter WSD / WSDEBulk water meter WSD / WSDE
WSD is a Woltman water meter with perpendicular turbine shafts and is optimally prepared for remote reading via M-Bus, wireless M-bus, LPWAN, LoRaWAN®, SIGFOX, GSM or pulser.
Water Meter MNK-STWater Meter MNK-ST
Water Meter MNK-ST is designed for installation in vertical pipelines with an upwards flow direction. The MNK-ST water meter fits perfectly into all installation locations …
Water meter MTKD-S1-L-M-CC and MTKD-S1-L-NWater meter MTKD-S1-L-M-CC and MTKD-S1-L-N
The MTKD-S1-M-CC is equipped with an 8-digit dry-dial register (IP 68) and a modulator disk.
Water meter MTKD-M-FA and MTKD-N-FAWater meter MTKD-M-FA and MTKD-N-FA
The MTKD-FA is a multi-jet dry dial meter for cold water in a downpipe design. The MTKD-FA is equipped with an 8-digit dry dial meter register and a modulator disc. This enables …
Minomess® Surface mounted water meter with radio moduleMinomess® Surface mounted water meter with radio module
Minomess® is equipped with a LoRaWAN® or wireless M-Bus radio module ex works and can be integrated in LoRaWAN® readout-systems.
Water Meter Measuring Capsule Minolist with LoRaWAN® or wireless M-Bus interfaceWater Meter Measuring Capsule Minolist with LoRaWAN® or wireless M-Bus interface
Precision and ease of use. Minolist is the ZENNER coaxial measuring capsule water meter according to the multiple jet principle. The Minolist flush-mounted measuring capsule by …
Residential Water Meter MNK-NResidential Water Meter MNK-N
Multi-Jet Water Meter MNK-N is retrofittable with pulser or PDC module for remote readout via radio: wirless M-Bus, LoRaWAN®.
Positive Displacement meter RTKD-M and RTKD-M-CCPositive Displacement meter RTKD-M and RTKD-M-CC
Positive Displacement Meter RTKD is equipped with dry dial and with the new d-register.RTKD-M is equipped with 8-digit rollers register and modulator disc for non-reactive …
Residential water meter MNK-N-FAResidential water meter MNK-N-FA
MNK wet dial measuring unit by ZENNER is available in a downpipe housing for vertical installation positions with a downward flow direction. Version MNK-N-FA is retrofittable with …
PDC Communication ModulePDC Communication Module
to connect ZENNER meters with pulse output PDC-communication module with LoRaWAN® or wireless M-Bus interface
Compound water meter WPVMCompound water meter WPVM
The WPVM compound meter is a special design for use in drinking water distribution and industrial applications with a cartridge water meter as secondary meter
Compound water meter WPVRCompound water meter WPVR
The WPVR compound meter is a special design for use in drinking water distribution and industrial applications with piston type meter as secondary meter
EDC-communication module with LoRaWAN® or wireless M-Bus radio interfaceEDC-communication module with LoRaWAN® or wireless M-Bus radio interface
For connection to ZENNER water meters with modulator disc
Universal meter M22 for installation lengths from 110 to 190 mmUniversal meter M22 for installation lengths from 110 to 190 mm
The M22 universal water meter is suitable for a range of application situations, thanks to its range of spacers in combination with its choice of nominal sizes, in either Qn 1.5 …
ZENNER Flush mounting block 2″ZENNER Flush mounting block 2″
The new ZENNER Block 2″ with its small dimensions is currently the smallest assembly block for water meters in the world.
Washstand water meterWashstand water meter
We provide a wide range of armature meters for subsequent installation of water meters inside the dwelling. The ZENNER washstand water meter is the ideal retrofitted water meter …
Water meter valve meter type MCWater meter valve meter type MC
The ZENNER Type MC valve meter is the ideal retrofitted water meter for flush-mounted valves. It is a water meter for the cold and hot water area in dwellings and flats, which has …
Water Meters ETKD-L with polymer plastic housingWater Meters ETKD-L with polymer plastic housing
ETKD-L is a Single-Jet Meter in a polymer plastic housing, designed for recycling. The new EKTD-L has a counter with a shielded magnetic coupling which delivers virtually perfect …
Water Meters ETKD/ETWDWater Meters ETKD/ETWD
Water Meter EKTD/ETWD is a Single-Jet Meter for cold and hot water. The ETKD is equipped with a counter with a shielded magnetic coupling which delivers virtually perfect results …
Bathtub meter type MCBathtub meter type MC
Apartment water meter with radio module LoRaWAN® or wireless M-Bus interface
Mobile wireless M-Bus radio system OperaMobile wireless M-Bus radio system Opera
The mobile wireles M-bus radio system especially for remote reading of water meters, heat meters and energy meters for heating and cooling according to DIN EN 13757-4.
Positive Displacement meter RTKD-L-M and RTKD-L-NPositive Displacement meter RTKD-L-M and RTKD-L-N
The RTKD-L is a multi-jet water meter for cold potable water in a plastic housing. RTKD-M is equipped with 8-digit rollers register and modulator disc for non-reactive scanning …
Woltman well water meter WBDWoltman well water meter WBD
The WBD are used to record high flow rates in drinking water distribution, which transition from a vertical pipe to a horizontal pipe. The WBD can be mounted directly on the well …
Adjustable compensating pieces for bulk water metersAdjustable compensating pieces for bulk water meters
The movable spacer accommodates the various installation face-to-face lengths of the different meter types and can be fitted very easily.
Water meter for tapWater meter for tap
The ZENNER tap meter, with its special connection, can be installed on all common taps. With its lead seal, the water meter connector protects the unit from tampering. The tap …
Residential Water Meter MNK-L/MNK-L-NResidential Water Meter MNK-L/MNK-L-N
Multi-Jet Plastic Water Meter MNK-L-N is a further development of the MNK. MNK-L-N is retrofittable with pulser (reed) or PDC communication module for remote readout via …
Water meter ETKD-M-CC R160Water meter ETKD-M-CC R160
The single-jet water meter ETKD R160 represents the best starting values and the highest accuracy and measuring stability with an optimal price / performance ratio. This is …
Water Meter ETK 45° with 45° inclined dialWater Meter ETK 45° with 45° inclined dial
With its 45° inclined dial, the ETK 45° allows data reading from different angles. It is used in every installation situation where the view from above to the meter register is …
Water meter ETKDI/ETWDIWater meter ETKDI/ETWDI
The ETKDI/ETWDI is a single-jet meter developed by ZENNER with the new D-register and equipped with a pulser permanently installed ex works. The individual advantage of the ETKDI …
MNK-MF-NMNK-MF-N
The MNK-MF-N combines a multi-jet dial retained in a robust brass housing with a dual check valve assembly and an isolating ball valve. The MNK-MF-N is suitable for water …
Residential water meter MNK-L-RPResidential water meter MNK-L-RP
Multi-Jet Plastic Water Meter MNK-L-RP Its main features are a low starting flow and reliable performance even with aggressive water qualities or dezincification effects.
Water Meter MNK-RP-N with protected rollersWater Meter MNK-RP-N with protected rollers
The indicator wheels of the counter for the ZENNER MNK-RP series water meters are housed in their own chamber, which is filled with a special protective fluid. MNK-RP-N is …
Piston Type Water Meter RNK-L-RP-NPiston Type Water Meter RNK-L-RP-N
Volumetric Piston Meter RNK-L-RP-N is a water meter for cold potable water with protected dial and composite housing. RNK-L-RP-N is equipped with pulser (Reed) for remote readout.
Water Meter MTK-S 45° with inclined dialWater Meter MTK-S 45° with inclined dial
MTK 45° water meter is a Multi-Jet impeller meter. The version MTK-N-S is retrofittable with pulser (reed) for remote readout. With its 45° inclined dial, the MTK 45° …
Thermal Energy
Our heat and cooling energy meters offer exceptional quality and maximum precision. Due to the continued development of our meters, we offer a portfolio, which meets current requirements and rules, such as the European Energy Efficiency Directive (EED) as well as international standards.
Connection interface type IST for heat and cooling meterConnection interface type IST for heat and cooling meter
The EAS (single pipe connector) forms the base for the zelsius® compact heat meter. This must only be installed on the initial installation and then remains in the heating system.
zelsius® C5-IUF – Thermal energy measurement instrument with ultrasonic flow sensor (IUF) for heating and/or cooling systemszelsius® C5-IUF – Thermal energy measurement instrument with ultrasonic flow sensor (IUF) for heating and/or cooling systems
The zelsius® C5 IUF ultrasonic heat meter and cooling meter operates with an innovative ultrasonic technology, specially developed for domestic energy measurement and district …
zelsius® C5-CMF – Thermal energy meter with measuring capsule flow sensor (CMF)zelsius® C5-CMF – Thermal energy meter with measuring capsule flow sensor (CMF)
The Heat Meter/ Cooling Meter zelsius® C5 CMF is equipped with a compact measuring capsule (CMF). ZENNER offers the zelsius C5 CMF for different connection interfaces …
Ultrasonic flow sensor IUFUltrasonic flow sensor IUF
IUF is designed for for measurement of thermal energy (heating or cooling) Nominal flow qp 15 to qp 600 m³/h Nominal diameter DN 50 to DN 300
Flow sensor IMF-ST and IMF-FFlow sensor IMF-ST and IMF-F
The IMF-ST and IMF-F are flow sensors for flow rates of 3,5m³/hr. to 10m³/hr. The connection and structural dimensions of the meter are in line with DIN 19648 part 3.
Flow sensor ISFFlow sensor ISF
The flow sensor ISF is a single-jet impeller flow sensor with high-resolution, interference-free and reactionless electronic scanning using ultra-modern microcontroller …
zelsius® C5-ISF – Thermal energy meter with single-jet flow sensor (ISF)zelsius® C5-ISF – Thermal energy meter with single-jet flow sensor (ISF)
The Heat Meter/ Cooling Meter zelsius® C5 ISF is, thanks to a combination of an economic concept and a very compact design, outstandingly suitable for recording all accounting …
Temperature sensor for heat and cooling meterTemperature sensor for heat and cooling meter
Temperature sensor pairs with platinum precision resistance for combination with all standard calculators in measuring points for the consumption of heat and cooling energy
Energy calculator multidata WR3Energy calculator multidata WR3
The multidata WR3 energy calculator is an innovative split calculator for heat meters and cooling meters that can be combined with all current volumetric flow sensors – and also …
Flow sensor IMFFlow sensor IMF
The IMF is a flow sensor for fl ows of 3.5m3/hr to 10m3/hr with a horizontal mounting. Its particular construction ensures high measuring accuracy and reliable measurement …
Gas
ZENNER is one of the largest gas meter manufacturers in the world. We currently produce over five million gas meters annually and have been supplying the Asian and Latin American markets with high-quality products since 2012.
From 2021, our gas meters will be available in the European and German markets.
Atmos® - Compact type gas meterAtmos® - Compact type gas meter
The Diaphragm gas meter is available in sizes G1.6 and G2.5. The meter is characterized by precise measurements, a constant measuring stability, a long life and high reliability.
Atmos HP – diaphragm gas meter HPG1.6A, HPG2.5A, HP G4AAtmos HP – diaphragm gas meter HPG1.6A, HPG2.5A, HP G4A
The Atmos® HP diaphragm meter is available in sizes G1,6A and also G2,5A and G4A. The meter is characterized by precise measurements, a constant measuring stability, a long life …
Corrugated stainless steel tubing & connectorsCorrugated stainless steel tubing & connectors
ZENNER stainless steel corrugated pipe offer flexibility durability and functionality. All of our gas connectors (residential and commercial) are CSA certified.
EVC (Electrical Volume Corrector)EVC (Electrical Volume Corrector)
EVC adopts intelligent integrated design which can dynamically test the temperature and pressure of the medium and perform automatic compensation and compression factor correction.
ZTM series gas turbine flow meterZTM series gas turbine flow meter
ZTM series gas turbine flow meter is equipped with mechanical counter it’s a kind of meter don’t run slowly with high flow measurement accuracystrong anti-magnetic attack …
ZYL Series Rotary Flow MeterZYL Series Rotary Flow Meter
ZYL Series Rotary Flow Meter is a kind of volumetric flow meter that accurately measures the passage of gas.
Atmos® - GPRS/NB-IoT Smart Diaphragm Gas MeterAtmos® - GPRS/NB-IoT Smart Diaphragm Gas Meter
GPRS/NB IOT gas meter is a smart gas metering product based on ZENNER mechanical diaphragm gas meter, combined with a built-in shut-off valve basement and a smart controller with …
Atmos diaphragm gas meter G1.6S, G2.5S, G4S, G6SAtmos diaphragm gas meter G1.6S, G2.5S, G4S, G6S
The Atmos® diaphragm meter is available in sizes G1,6 and also G2,5, G4 and G6. The meter is characterized by precise measurements, a constant measuring stability, a long life …
Atmos® – LoRa / LoRaWAN® Smart Electronic Index for Gas MeterAtmos® – LoRa / LoRaWAN® Smart Electronic Index for Gas Meter
The LoRa / LoRaWAN® smart applications are growing rapidly with the Internet of Things deployment, it realized collecting data from the distances of many miles or kilometers, …
Atmos® HP - diaphragm gas meterAtmos® HP - diaphragm gas meter
The Diaphragm gas meter is available in size G6. The meter is characterized by precise measurements, a constant measuring stability, a long life and high reliability.
Atmos® - diaphragm gas meter with temperature compensationAtmos® - diaphragm gas meter with temperature compensation
The gas meters G1.6-T | G2.5-T | G4-T are equipped with a temperature compensation mechanism. When the temperature of the gas flow changes, a synthetic bi-metal with different …
Atmos® - Compact type gas meter (die-cast aluminum)Atmos® - Compact type gas meter (die-cast aluminum)
The Diaphragm gas meter is available in sizes G1.6 and G2.5. The meter is characterized by precise measurements, a constant measuring stability, a long life and high reliability.
Atmos® XL Industrial & Commercial diaphragm gas metersAtmos® XL Industrial & Commercial diaphragm gas meters
The Atmos® XL Industrial diaphragm gas meter is available in sizes G6, G10, G16 and G25. The meter is extremely suitable for the conditions of hotels, restaurants, factories and …
Atmos® IQ IC-Card prepaid diaphragm gas meter IG1.6S, IG2.5S, IG4SAtmos® IQ IC-Card prepaid diaphragm gas meter IG1.6S, IG2.5S, IG4S
The Atmos® IQ diaphragm gas meters are credit gas meters and use an encrypted IC card as a data carrier. The IC-Card diaphragm gas meter is available in sizes IG1,6S and also …
Atmos® – diaphragm gas meter G1.6A | G2.5AAtmos® – diaphragm gas meter G1.6A | G2.5A
The Atmos® diaphragm gas meter is a high-grade measuring instrument. The Diaphragm gas meter is available in sizes G1.6 and G2.5. The meter is characterized by precise …
Atmos wide-range diaphragm gas meters WG2.5SAtmos wide-range diaphragm gas meters WG2.5S
The Atmos® wide-range diaphragm gas meter WG2.5S is available in size WG2,5. The meter is characterized by precise measurements, a constant measuring stability, a long life and …
AMR-System for Gas MetersAMR-System for Gas Meters
The Automated Meter Reading System (AMR-System) for gas meters is an optimal solution for all gas suppliers. It enables improved meter management and the implementation of …
Sensors
In addition to a wide range of measuring devices ZENNER has a range of complimentary intelligent sensors like heat cost allocators and smoke detectors. They are designed for minimal maintenance and seamless integration into your own or 3rd party data collection environments.
ZENNER CO2 INDICATOR L868 ID A for LoRaWAN®ZENNER CO2 INDICATOR L868 ID A for LoRaWAN®
The ZENNER CO2 INDICATOR is a compact indoor LoRaWAN® radio sensor (868 MHz) for measuring the CO2 content of indoor air.
ZENNER Indoor T+H sensorZENNER Indoor T+H sensor
The ZENNER Indoor T+H Sensor is an indoor temperature and humidity sensor with wireless M-Bus and LoRaWAN® radio interface.
EASY PROTECT Radio smoke alarm for wireless M-Bus or LoRaWAN®EASY PROTECT Radio smoke alarm for wireless M-Bus or LoRaWAN®
The EASY PROTECT Radio smoke alarm was specially developed for use in radio remote reading systems and offers optimum protection.
Electronic heat cost allocator for Wireless M-Bus or LoRaWAN®Electronic heat cost allocator for Wireless M-Bus or LoRaWAN®
The electronic heat cost allocator caltos E with integrated radio interface serves to record the share of heat produced by radiators.
Smart solutions
for municipalities, water providers and real estate companies
Build the future with ZENNER!
With an extensive portfolio of innovative measuring technology, ZENNER offers water meters, heat and cooling energy meters, gas meters, modern IoT sensors and digital solutions across a network of customers and partners in more than 100 countries around the globe.
Our digital solutions enable our customers to implement intelligent systems for the consumption measurement of water, heat, cooling or gas.
Radio-ready meters, state-of-the-art remote reading systems for M-Bus, wireless M-Bus or LoRaWAN® IoT provide various new possibilities for developing innovative added value services.
From detecting leaks, to consumption optimisation, through to setting up intelligent supply networks, our products and technologies open up a whole new range of digital opportunities.
Innovative measuring technology – water meters, gas meters, heat and cooling energy meters
Address today’s challenges regarding sustainability, climate protection and conserving resources with smart measuring technology from ZENNER.
Our products meet all of your requirements regarding product service life, precision and the option of integrating meters into modern communication solutions such as wireless M-Bus or LoRaWAN®.
Measuring technology from ZENNER meets all of these requirements and supports municipal utilities, energy providers, real estate companies and industrial companies in completing all measurement tasks – today and in the future. Our measuring instruments enable our customers to create added value and provide you with future-ready and sustainable solutions.
Innovative communication technology: M-Bus, wireless M-Bus, NB-IoT and LoRaWAN® IoT
ZENNER provides you with support during the planning, installation and operation of remote reading systems.
In addition to the hardware for wired M-Bus solutions, we provide two innovative alternatives for the wireless remote reading of your water meters, heat and cooling energy meters and gas meters with the wireless M-Bus system and the stationary LoRaWAN® IoT radio system:
- Reading without needing access to the property
- Simple and secure transmission of meter data
- Avoidance of reading errors
- Optimum data quality and continuous availability of data
- Shorter reading and billing intervals
- Simple reading of difficult to access measurement points
Newsroom
Find our latest news and publications here
World Water Day 2025
World Water Day on 22 March 2025 reminds us how essential the sustainable use of water is for our future.
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Successful participation in SMAGUA 2025: Smart cities, strong solutions! #SmartWater
With a broad portfolio of digital measurement technology for the water industry and the ‘parallel radio’ innovation, ZENNER España’s team attracted numerous visitors to its stand.
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Smart cities, strong solutions!
Under this motto, we presented our products and solutions for resilient infrastructures at E-world 2025 in Essen – from digital metering technology, IoT technologies such as LoRaWAN® and solutions for the digitalisation of water management to the innovations ZENNER AI and ZENNER Cybersecurity.
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Here you can find our upcoming events
Tausendwasser 2025
Take the first step towards digital water management and discover strong solutions for smart cities! #SmartWater
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South and East Bavarian Water Conference 2025
Save the date! Visit us on 9 and 10 April 2025 in Landshut at the 8th South and East Bavarian Water Conference.
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IoT Solutions World Congress 2025
Save the Date! From 13 to 15 May 2025, we will be taking part in the IoT Solutions World Congress in Barcelona.
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