Simplify your tasks with ista’s radio system.
The radio system from ista enables seamless, wireless communication between heat cost allocators, heat meters, and water meters.
Your benefits at a glance.
Remote reading of consumption data
Automatic data transfer on fixed dates
Automatic fault detection
Modular expansion options
Efficient data. Intelligent energy. Reliable security.
At ista, we understand the importance of accurate, reliable energy management for commercial real estate. That’s why we’re proud to offer the most advanced and forward-looking bidirectional wireless technology available.
Our technology enables seamless communication between heat cost allocators, heat meters, and water meters, ensuring accurate consumption measurements and efficient energy management. Additionally, our reading system guarantees the privacy and security of your data.

Introduction of Symphonic Sensor Net, ista’s innovative radio system for energy management
The memonic communication module is the central reading unit for ista’s Symphonic Sensor Net radio system and serves as the interface between radio equipment and the mobile network.
Our pulsonic 3 Radio Net module connects to any measuring device with a contact output, stores the data, and transmits it 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 features a built-in transmitter and seamlessly integrates conventional heat meters into our radio system, making it easy to incorporate existing installations.
Bidirectional data transfer
Fully battery-operated system
Wireless data collection

Take control of your energy with our comprehensive management solutions.
Discover how our energy management services allow you to monitor, optimise, and reduce energy consumption, leading to significant cost savings and sustainability.
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 operates through the integration of an advanced communication unit that serves as the central interface between installed measuring devices and the ista data centre. This system seamlessly connects heat cost allocators, heat meters, water meters, and smoke detectors via the memonic communication unit®, which acts as the central interface for the mobile network. This hub collects, stores, and transmits data from connected devices, ensuring an accurate and timely flow of information. With features for automatic data capture and transmission, the system enhances the efficiency of energy management and billing processes without physical access to the measuring equipment, while ensuring data privacy and security through its closed transmission system.
Technical features
- Bidirectional wireless communication.
- Fully battery-powered.
- Automatic fault detection.
- Modular expansion options.
- Compatibility with third-party devices.
Everything you need to download.
symphonic® radio (dutch)
PDF - 357 KB