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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Minol ZENNER Connect and ZENNER Hessware merge to form ZENNER Connect
Following several years of close, successful cooperation, the two companies in the Minol-ZENNER Group merged in August 2023. Minol ZENNER Connect GmbH and ZENNER Hessware GmbH have joined forces to become ZENNER Connect GmbH.
Read moreZENNER Corporate History
The founding of the ZENNER company Karl Adolf Zenner Snr laid the foundation stone for the present-day company, ZENNER International, in 1903 with the founding of a marketing company for water ...
Read moreZENNER at the Enlit 2025: Adapt yourself!
Enlit Europe, one of the leading trade fairs for municipal utilities, digitalisation and sustainable infrastructure, will take place in Bilbao from 18 to 20 November. ZENNER International GmbH & ...
Read moreSmart Submetering
Discover new possibilities with smart submetering and talk to ZENNER about tailored solutions for your business!
Read moreSmart City
Whether Smart City, smart district, or smart region – ZENNER is your partner for a connected and smart future.
Read moreTausendwasser 2025: ZENNER impresses with digital solutions for the water industry
ZENNER can look back on its successful participation in the Tausendwasser trade fair in Berlin with a thoroughly positive conclusion.
Read moreSmart 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.
Read moreBest Practice: Implementation of an IoT-based system for detecting and locating pipe network leaks in Stade
In order to reduce water losses in the network, the municipal utility of Stade, together with ZENNER and HST Systemtechnik, have implemented a pilot project in which those losses can be detected and qualified with the help of innovative IoT technologies.
Read moreMetering as a Service from ZENNER: The most advanced way of collecting data
To support the switch to digital data collection via radio, ZENNER has developed a new solution package for the economical remote reading of water meters: Metering as a Service.
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Rotary piston dry-dial meter RTWD-M-CCRotary piston dry-dial meter RTWD-M-CC
for hot water with flood-proof Copper-Mineral Glass-Register (IP 68)
EDC B.One-communication module with M-Bus interface and electronic pulse outputEDC B.One-communication module with M-Bus interface and electronic pulse output
For connection to ZENNER water meters with modulator disc
EDC B.One-communication module with LoRaWAN® or wireless M-Bus radio interfaceEDC B.One-communication module with LoRaWAN® or wireless M-Bus radio interface
For connection to ZENNER water meters with modulator disc
Indoor T+H sensor B.OneIndoor T+H sensor B.One
Temperature and humidity sensor with wireless M-Bus and LoRaWAN® interface
NDC B.One-communication module with wireless M-Bus or LoRaWAN® radio interfaceNDC B.One-communication module with wireless M-Bus or LoRaWAN® radio interface
Communication module to connect to ZENNER ultrasonic water meter series IUW / IUWS B.One
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.
Wastebox LoRaWAN® level sensorWastebox LoRaWAN® level sensor
Wastebox is a stable IoT sensor for transmitting fill levels via a LoRaWAN® network. The LoRaWAN® level sensor is suitable for small disposal containers such as old clothes or ...
Bulk hydrant water meter WPD-HYBulk hydrant water meter WPD-HY
Woltman meter with a parallel to flow direction arranged turbine
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 ...
ZENNER CO2 INDICATOR B.One for LoRaWAN®ZENNER CO2 INDICATOR B.One for LoRaWAN®
The ZENNER CO2 INDICATOR B.One is a compact indoor LoRaWAN® radio sensor (868 MHz) for measuring the CO2 content of indoor air.
B.One Device ManagerB.One Device Manager
The B.One Device Manager is a wireles M-Bus readout and configuration application.
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 ...
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 ...
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 ...
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 ...
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 ...
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
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 ...
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®.
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 ...
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
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 ...
Ultrasonic bulk water meter IUWUltrasonic bulk water meter IUW
Ultrasonic bulk water meter for use in drinking water distribution and industrial applications
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.
Minomess A B.One Surface mounted water meter with radio moduleMinomess A B.One Surface mounted water meter with radio module
LoRaWAN®- or wireless M-Bus-interface
PDC B.One communication modulePDC B.One communication module
to connect ZENNER meters with pulse output PDC B.One communication module with LoRaWAN® or wireless M-Bus interface
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, ...
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.
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 ...
Bulk water meter WPD/WPHD T90Bulk water meter WPD/WPHD T90
Woltman meter with a parallel to flow direction arranged turbine
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 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 ...
Residential water meter MTKD-SResidential water meter MTKD-S
Water Meter MTKD-S is an improvement of the millionfold proved MTK. The newly developed dry dial counter with tamper-proof magnet coupling is available in a number of model (wiper ...
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 ...
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 ...
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 ...
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 ...
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 ...
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.
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-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 ...
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 ...
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.
Bathtub meter type MCBathtub meter type MC
Apartment water meter with radio module LoRaWAN® or wireless M-Bus interface