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.
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 B.Onezelsius C5-IUF B.One
Thermal energy measurement instrument with ultrasonic flow sensor (IUF) for heating and/or cooling systems
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 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 …
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
Calculator for heat meters multidata WR3 B.OneCalculator for heat meters multidata WR3 B.One
Heat calculator for heat- und cooling meter
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.
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.
Our highlights
With ZENNER, you are always one step ahead.
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
NB-IoT
ZENNER Blog
Find our latest news and publications here:
LoRaWAN as the Foundation for Smart Cities: ZENNER at the Smart City Expo World Congress (SCEWC) 2026
At the Smart City Expo World Congress in Barcelona, ZENNER will showcase how LoRaWAN can serve as the foundation for smart cities.
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Recap: ZENNER at Smart Country Convention (SCCON) 2026
The Smart Country Convention (SCCON), took place in Berlin from 13 to 15 October. ZENNER International GmbH & Co. KG was once again among the exhibitors
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Our customer magazine Smart & Easy – Issue 2-2026
Why ZENNER embraced LoRaWAN® early on and now benefits from one of the largest LoRaWAN® networks in the world.
Read moreEvents
Here you can find our upcoming events:
Smart City Expo World Congress 2026
Save the Date! Meet us from 3 to 5 November 2026 at the Smart City Expo World Congress in Barcelona.
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Enlit Europe 2026
We’ll be there! From November 10 to 12, 2026, you can meet us at Enlit Europe in Vienna.
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Metering Days 2026
Save the Date! On 17 and 18 November 2026, experts from the energy and utilities industry will meet in Fulda for the Metering Days.
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