NB-IoT Radio Module available in a compact version with inductive sensor for direct mounting on the meter, or in a separate version with pulse input to upgrade any compatible pulse-output meter to a smart device. Data communication uses a low-latency UDP protocol with wM-Bus application layer compliant with EN 13757-8:2023, ensuring interoperability and reliability.
NB-IoT connectivity provides long-range coverage via the 4G cellular network, both in urban and suburban environments. Battery-powered operation ensures up to 13 years of autonomy, depending on configuration and transmission frequency. Activation and configuration are performed via NFC interface using a dedicated Android app or through OTA (Over-The-Air) mode.
COMPACT VERSION
The module is designed for direct installation and sealing on Maddalena MVM meters DN 15÷40; the front cover allows visual access to the totalizer and the dial markings.
SEPARATE VERSION
Five-wire pulse input with the option for installation and sealing on a bracket for pipe, wall, or fixed mounting on Maddalena E-BULK meters.
• NB-IoT communication technology (LTE Cat-NB2)
• Communication protocol compliant with MBAL M-Bus adaptation layer standard (EN13757-8:2023)
• Antenna optimized for bands: B3, B5, B8, B20, B28
• Integrated MFF2 SIM (sim-on-chip)
• NFC interface for installation, configuration, and verification (Android app)
• Estimated lifetime of 13 years (depending on configuration type)
• Integrated static memory even in case of depleted battery
• Manual or automatic activation of the radio module
| Specification | Value |
|---|---|
| Integrated radio interface | NB-IoT LTE Cat-NB2 |
| TIS (Total Isotropic Sensitivity) | -116 dBm |
| TRP (Total Radiated Power) | 23 dBm |
| Alarms | Consumption threshold exceeded, no consumption, reversed meter, reverse flow, suspected leak, low battery, magnetic fraud, mechanical fraud |
| Transmission distance | 3–25 km (depending on the frequency band and the network cell load) |
| Configuration | Factory default or customer-specific |
| Standards compliance | EN 62479:2010 IEC 62368-1:2018 + COR1:2020 ETSI EN 301 489-52 EN IEC 62368-1:2020 + A11:2020 + AC:2020 ETSI EN 301 489-1 Directive RoHS2 2011/65/EU EN 62311 ETSI EN 301 908-13 Directive RED 2014/53/EU Directive EMC 2014/30/EU |
| Available data frames | Reading indexes with the following periods: • 1 day (hourly consumption delta) • 3 days (6-hour consumption delta) • 15 days (daily consumption delta) |
| Operating temperature range | -10 °C to +55 °C |
| Protection rating | IP68 |
| User interfaces | NFC interface (installation and configuration) Standard contactless interface: ISO 15693 (frequency: 13.56 MHz) |
| Meter interfaces | Bidirectional inductive sensor (compact version) Open-drain pulse input (split version) |
| Battery lifetime | Up to 13 years (depending on configuration) |
