Automatic energy readings without replacing meters
Accurate data. Simple, reliable, and cost-efficient.
Managing energy in apartment buildings can be challenging, especially in older properties with mixed meter brands, no unified IT system, and growing pressure from European legislation such as the Energy Efficiency Directive (EED).
The challenges for building administrators
Our solution
ACRIOS enables meter reading digitalization without meter replacement. M-Bus and wM-Bus converters read data from water meters, heat meters, and heat cost allocators, transmitting it to a central system via NB-IoT or LoRaWAN.
The solution is fully compliant with the requirements of the EED directive (EU 2018/2002) and its German implementation EnEfG, enabling property managers to automatically provide monthly consumption reports to tenants.
Devices operate on battery power with a lifetime of up to 10 years, carry an IP67 rating, and require no electrical installation. Open protocols and detailed documentation ensure straightforward integration.
For customers requiring a complete end-to-end solution, ACRIOS also offers its own backend for unit management, consumption data overview, and data export.
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What you gain
Stress-free compliance means meeting EED requirements for monthly tenant reports through automatic data collection, while staying prepared for inspections and future directives such as EPBD. To address the complexity of technologies like LoRaWAN or NB-IoT, expert consultations help define the right technical approach, specifications, and supplier requirements, ensuring a solution that works in practice.
Compatible with Apator, Metra, Sontex, Itron, Sensus, Techem and more – even models from 2007, if transmitting via wM-Bus.
One unit covers 4–6 floors. Drill, mount, power on – done in under 10 minutes.
Delivered with built-in battery and SIM card. No wiring required. IP67 casing ensures reliability even in basements or technical rooms.
Monthly tenant reporting is mandatory. Our devices collect data and export directly to Excel or accounting systems.
Already have a system? Connect via JSON, CSV or API endpoint. Need one? We’ll recommend a dashboard.
Supported meters
Maddalena
- Maddalena RADIO EVO
- Maddalena ITN GRADUS
- Maddalena MicroCLIMA EVO
- Maddalena ARROW EVO
- Maddalena ARROW SPLIT
- Maddalena ELECTO SJ
- Maddalena ELECTO SONIC
B-Meters
- B-Meters IWM-TX3
- B-Meters IWM-TX4
- B-Meters IWM-TX1
- B-Meters HYDRODIGIT
Apator Metra
- Metra E-ITN 30
- Metra E-RM 30
- Metra E-ITN 40
- AT-WMBUS-16-2
- Apator ULTRIMIS
Sontex
- Sontex Ei6500-SA2-R
- Sontex Supercom 581
- Sontex Supercal 739
- Sontex Superaqua 1
- Sontex 566
- Sontex 556
- Sontex 587
- Sontex 868
Diehl
- Diehl SHARKY 775
- Diehl SHARKY 774
- Diehl HYDRUS wM-Bus
- IZAR RC 868 I R4
- IZAR RC 868 I G4 PL
- ARIES IS
Sensus
- Sensus iPERL 433
- Sensus iPERL 868
- Sensus MeiStream
Qundis
- Qundis Q Cal 5.5
- Qundis Q Water 5.5
- Qundis Q Module 5.5 Modularis
- Qundis Q Module 5.5 Allmess
- Qundis Q Heat 5
- Qundis Q Heat 5.5
Techem
- Techem FHKV Radio 4 OMS
- Techem Radio Module FM Radio 4
ZENNER
- ZENNER Zelsius
- ZENNER Minomess
- ZENNER IUWS wM-Bus
- ZENNER caltos E wM-Bus
ENBRA
- ENBRA ETW Modularis + modul Q module 5.5
- ENBRA ER-AM
- ENBRA Picoflux Air s wM-Bus
- ENBRA ULTRIMIS wM-Bus
- ENBRA Superaqua 1 wM-Bus
- ENBRA MT Supercal 739
Ostatní
- BFW 240 radio
- Engelmann HCA e2
- Kamstrup Multical 21
- Flamco LogoplusSonic
- Landy&Gyr ULTRAHEAT T330 (UH30…)
- AXIS Industries WFH-M
- WEHRLE modul
- Itron EquaScan eHCA
Can’t find your meter? Contact us with the model type. Once tested, we’ll add it to the supported devices list.
How to get started
Receive 1–2 units for trial. The test units will include our SIM card to speed up the testing process.
See live data from your building
Integrate and expand across your property. We’ll complete the integration either directly into your systems or via our applications, and deliver the required number of units.
Proven in practice
"Thanks to ACRIOS, both we and our customers are fully prepared for the EED requirements. We tested the devices for several years under different conditions and now recommend them with confidence. They work reliably – and cooperation with ACRIOS is always fair and straightforward."
Bring your building into the future of energy management
Simpler readings, guaranteed compliance, happier tenants. Try our solution today.
Frequently asked question
Yes – if they use wM-Bus or another supported protocol.
No, your existing meters remain in place.
Not an issue – we support Apator, Metra, Sontex, Itron, Sensus, Techem and more.
Less than 10 minutes, with no wiring or inspections required.
More than 10 years under normal use.
Yes – data is encrypted, with remote management and OTA updates supported.
Devices use anonymised identifiers – no sensitive data needed.
Yes – devices are open and ready for integration.
Vodafone NB-IoT with nationwide coverage in the Czech Republic.
Factor in not only device price, but also installation, data transfer, and long-term operation.
Blog
15-minute vs daily meter readings frequency explained
When DTLS makes sense. Know before you deploy
868 MHz or 433 MHz? The right choice for your wM-Bus
Everything you need to know, documented. ACRIOS wiki.
Give me a tool that works. Not a manual.
5 most common myths about remote meter reading
Battery-powered vs wired: What really costs more?
Next-gen meter readings, no replacements needed
Understanding TCO: More than just hardware
LoRaWAN: All you need to know
M-Bus, wM-Bus, and RS-485: A technology guide
LoRaWAN vs. NB-IoT: Which technology is right for you?
Tell us what you need. We’ll find the best solution together.
