Compact wM-Bus radio module for drive-by and fixed network remote data reading. Also available in a standalone version for connection to compatible pulse emitting meters. Arrow EVO is also suitable for difficult Utility installations (IP68). The configuration of the radio module can be changed using a dedicated configuration kit (optional) and Android app.
Radio module available in a compact version, with inductive sensor for direct mounting on the meter, or in a separate version with pulse input, ideal for making any meter equipped with a compatible pulse output smart. Data communication takes place via the wM-Bus network (EN 13757), with a protocol compliant with the OMS standard, ensuring high interoperability with mobile and fixed reading systems.
The radio technology used ensures low energy consumption, making it suitable for urban and suburban contexts. Power is supplied by a battery with a service life of up to 15 years (depending on the type of configuration and the number of readings/transmissions). Activation and configuration are carried out locally via a configuration kit.
• Bidirectional inductive sensor (compact version)
• Direct cable-free installation (compact version)
• 868 MHz, with open wM-Bus data protocol (EN 13757), OMS
• Mobile (walk-by) or fixed (AMR) data reading – T1, C1 mode
• Low-power pulse meter interface
• Local configuration via radio interface
• Internal omnidirectional antenna
• Protection rating: IP68
• Battery life up to 15 years
• Compact dimensions
The module is designed for direct installation on Maddalena MVM DN 15–DN 40 meters; it allows visual access to the totaliser and to the dial markings.
5-wire pulse input with possibility of direct connection to Maddalena pulse sensors (Quadraplus, Flowpulse or reed sensor) or other compatible third-party sensors.
| Specification | Value |
|---|---|
| Integrated radio interface | EN 13757 OMS – wM-Bus T1, C1 |
| Operating frequency band | 868 MHz |
| Transmission distance | up to 500 m in free line-of-sight air |
| Configuration | Factory default or customer-specific |
| Alarms | Tampering, magnetic fraud, reverse flow, presumed leakage, blocked meter, maximum flow rate, reversed meter, removal |
| Available data frames (default) | current volume, date and time, volume on billing date, billing date, alarms |
| Operating temperature range | from -10 °C to +55 °C |
| Protection rating | IP68 |
| User interfaces | wM-Bus interface |
| Meter interfaces | Bidirectional inductive sensor (compact version) Open-drain pulse input (separate version) |
| Battery life | Up to 15 years (varies according to the set configuration) |
| EN 301 489-3 V2.1.1 | EN IEC 61000-6-3 :2007+A1 :2011 |
| EN 301 489-1 V2.2.3 | EN IEC 61000-6-2 :2005+AC :2005 |
| EN 300 220-1 V3.1.1 | UNI EN 14154-3 :2005 |
| EN 300 220-2 V3.2.1 | EN 50581 |
| RED Directive 2014/53/EU | EN 62479 :2010 |
| RoHS Directive 2011/65/EU and subsequent versions | EMC Directive 2014/30/EU |
