Simplify your metering processes with ista's radio system.
The ista radio system ensures trouble-free, wireless communication between heat cost allocators, heat meters, and water meters.
Your benefits at a glance.
Remote reading of measurement data without manual input
Automatic data transfer on fixed dates
Automatic fault detection
Supports accurate monitoring of consumption data
Discover the most advanced radio technology.
At ista, we understand how essential accurate and reliable energy management is for building owners and managers. That is why we offer the most advanced and future-proof bidirectional wireless technology available.
Our solution ensures seamless communication between heat cost allocators, heat meters and water meters. This guarantees extremely accurate measurements and efficient energy management. What's more, our closed transmission system provides optimum protection for your data, ensuring privacy and security at all times.
Introducing ‘Symphonic Sensor Net’, ista's innovative radio system for energy management.
The memonic communication unit® serves as the central receiver for ista's Symphonic Sensor Net radio system and acts as the interface between radio devices and the mobile network or the reader's communication module.
Our Pulsonic P4.0 Radio Net module connects to any measuring device with a contact output, storing and transmitting data wirelessly. This versatile module is compatible with both ista's own devices and third-party devices such as gas, oil and electricity meters.
ista's Optosonic® 3 Radio Net module offers a built-in transmitter and seamlessly integrates conventional heat meters into our radio system, making it easy to integrate existing installations.
Two-way data transfer
Fully battery-powered system
Data collection via radio technology

Make billing simpler and more efficient with ista's heat cost allocator.
Our smart heat cost allocator is the perfect device for recording and monitoring heat consumption in buildings with block heating. Together with consumption-based billing for each tenant, you can be sure that everyone only pays for their own consumption.
Everything you need to download.
symphonic® radio (dutch)
PDF - 357 KB
Facts & figures
6,300 Employees
20 Countries
3.7 mil. t CO₂ emissions avoided
43 mil. Radio devices
14 mil. Utilisation units
How does it work?
The ista radio system connects the measuring devices to the ista data centre. The heat cost allocators, heat meters and water meters send their data to the data centre via a central interface. This central interface collects and transmits the information automatically and securely via the mobile network. This means that data is always up to date, energy costs can be calculated easily and no physical access to the property or meters is required.
Technical features
- Bidirectional wireless communication
- Fully battery powered
- Automatic fault detection
- Modular expansion options
- Compatibility with third-party devices