Managing heating costs can be complex and time-consuming. ista aperto is the modular solution that simplifies it all, ensuring accurate measurement, transparent billing, and full legal compliance. Our flexible system gives administrators and owners the freedom to choose how costs are managed across their portfolios.
ista Aperto is the innovative system that brings transparency and independence to managing expenses. Designed for condominiums, cooperatives, and multi-building properties, it lets administrators and owners manage readings and billing freely – or even assign them to another provider without changing devices.
The system combines high-quality electronic heat cost allocators, heat meters, and water meters to ensure accurate, transparent measurement. Data is stored safely, transmitted automatically, and always available when needed.
In Italy, individual heat metering is not only best practice but a legal obligation under D.Lgs. 102/2014 and D.Lgs. 73/2020. With ista aperto, you stay fully compliant while making cost allocation simple, efficient, and fair for everyone.
Simplify one of your most time-consuming tasks. ista aperto automates readings and cost allocation, ensuring transparency, reducing disputes, and guaranteeing compliance with Italian regulations.
ista Aperto gives you precise data, fair billing, and the freedom to choose your preferred service provider, all while meeting legal obligations.
Enjoy peace of mind knowing you pay only for what you actually use. ista aperto provides clear, traceable consumption data for transparent and fair billing.
Italian law requires individual heat cost allocation to promote energy efficiency and fairness among residents. And ista aperto makes this compliance effortless.
It is an open electronic system based on certified heat cost allocators which measure radiator surface area and room temperature in order to calculate actual consumption.
Its flexibility is what makes it unique: administrators and property owners can choose to manage readings and billing independently or assign these services to any trusted partner without replacing the devices.
With ista Aperto, you stay in control, ensuring accuracy, transparency and freedom in cost management.
Ista aperto combines advanced metering technology with everyday simplicity. Each electronic heat cost allocator measures both the temperature of the radiator surface and the room temperature. The difference between the two readings reveals the precise heat output of each unit. The devices communicate via a secure Radionet code and can store up to 14 months of data, ensuring full traceability and transparency.
Installation is quick and flexible, and ista provides all the necessary materials — including allocators, meters, mounting accessories, and a tablet — for guided self-installation. The ista tablet provides maximum autonomy throughout the process, from device mapping to final verification. Readings can be taken remotely or in walk-by mode using the MGW portable antenna and the ista aperto app, giving administrators or service partners full control over how data is collected.
The devices comply with the UNI EN 442 and UNI 10200 standards, which guarantees their accuracy and compatibility with buildings across Italy.
Watch the video tutorial to see how easily ista aperto devices can be installed, configured and connected, step by step, with full autonomy and support from ista’s digital tools.
ista has decades of metering expertise and is synonymous with precision, transparency and trust.
ista aperto combines state-of-the-art technology with the flexibility that Italian administrators and property owners require. All devices have a battery life of up to 12 years and feature secure Radionet communication and automatic data transmission for complete traceability.
Our systems are certified according to UNI EN 442, UNI 10200 and EU MID standards, ensuring accurate measurement and full regulatory compliance.
ista aperto gives you the freedom to choose who manages installation, reading and billing, but you can also opt for our complete service package, which covers everything from setup to ongoing management. ista experts are also always available to provide technical guidance and support.
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Read when and how you want. Carry out your own readings quickly and securely: ista provides all the necessary devices and support materials, while you remain in full control of data collection and timing.
Alternatively, perform readings independently using the ista tablet, the MGW portable antenna and the ista aperto app. Data is transmitted instantly via radio, giving you complete independence with no technical complexity.

With the ista Aperto app, you can read, record, and manage consumption data across one or several buildings. Fast, intuitive, and precise, it makes energy management easier than ever.
Brochure ista Aperto
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ista’s devices are designed for long-term reliability. The integrated battery lasts up to 12 years, ensuring consistent operation and minimal maintenance.
Yes. All ista aperto devices are equipped for remote reading via radio transmission, enabling quick, error-free data collection without entering apartments.
Absolutely. ista aperto is an open system, meaning you can choose who manages installation, reading, and billing while continuing to use ista devices.
Yes. The system fully complies with D.Lgs. 102/2014, D.Lgs. 73/2020, and the technical standard UNI 10200, meeting all legal requirements for individual heat metering and cost allocation.
Devices are low-maintenance and automatically record consumption data. To guarantee accuracy, replacement is recommended every 10 years in line with metering standards.
Yes. All data collected through ista systems is encrypted, GDPR-compliant, and stored in certified European data centres accessible only to authorised users.
Our custom solutions are designed to help our clients reduce their environmental impact, improve health and safety in their buildings, and save energy costs.
Save time and money with remote metering and transparent water billing solutions.