LTE Cat.M / Cat.NB modem for Honeywell AS220/AS230/AS300 and AS1440, AS3000/AS3500 electricity meters

Electricity meter
Smart Metering
Cat.M / Cat.NB
FW Updates
Remote Access

Wireless communications modem that has been designed specifically for automatized remote readout of Honeywell® AS type electricity meters.

The Narrow band version device can be ordered with several expansion boards and interfaces.

You can save money by using our modem because furthermore there is no need for manual readout of the meter systems.

The modem can be installed into the meter’s enclosure.

It provides transparent „pull” or „push” data link to the HES center, through the wireless network.

It is suitable for remote readout of registers, consumption data of the electricity meters, download of load profile at provider’s request by schedules or on-demand – „by pull” or „push” data sending method.

With the optional M-Bus expansion, it can be also connected for water and gas meters. The device is configurable by our WM-E Term® software.


Main features

  • LTE Cat.M / Cat.NB wireless module with optional 2G “fallback” feature
  • It can be assembled into the meter’s enclosure and fastened securely (sealed and separated from meter)
  • Design & connectivity meets with meter standards
  • Power supply (AC) from the meter
  • Compatible with Honeywell® AS220/AS230/ AS300, AS1400, AS3000/AS3500 meters
  • Surge protection option (from 4kV up to 12kV)
  • Embedded, realtime operation system
  • „Pull” data sending (for HES request), alarm triggered
  • „Push” data sending (FTP or IEC push, SMS trigger)
  • IEC 62056-21 protocol
  • Data encryption, TLS
  • Scheduled data sending or triggered by an alarm
  • Remote & safe firmware update and configuration
  • Supercapacitor option (for power outage), notification
  • Expansion module options



  • Utility companies
  • Meter data transmission to the HES centre
  • Smart Metering
  • Industrial measurement

Design and outfit

  • The modem PCB can be installed inside the meter enclosure – by modem enclosure rails
  • AC power from the meter
  • Compatibility with Honeywell® AS220/AS230/AS300, AS1440 and AS3000/AS3500 electricity meters
  • Compatibility with wired MBUS water & gas meters


Expansion options

  • RJ45 Ethernet interface
  • Relay board (switch operation/tariff)
  • Customer Interface outfit (RJ12, 6P6C)
  • MBUS board
  • Supercapacitors (against power outages)



  • „Pull” data sending (for HES request), or alarm triggered
  • „Push“ data sending (Ftp or IEC data “push”, SMS triggering)
  • IEC 62056-21 protocol Mode C / Data encryption, TLS
  • Transparent & non-transparent MBUS communication
  • Scheduled data sending trigger by an alarm
  • Immediate alarm notification (power outage, status)



  • Optional SMA antenna (50 Ohm) – upon request
  • WM-E Term® configuration software


Technical data


Product Datasheet

Installation Manual

Quick Guide

WM-E Term User Manual

WM-E3S Parameter Description

WM-E Term configuration tool

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