LTE Cat.M / Cat.NB modem for Honeywell / Elster Alpha A1500, A1700, A1800 and the A1140/A1160 electricity meters
Electricity meter
Smart Metering
Cat.M / Cat.NB
RS232 / RS485
FW Updates
Remote Access
SKU: WM-E1S NB Category:

Wireless communication modem that has been designed specifically for the automatized remote readout of Honeywell® / Elster® Alpha electricity meters.

The device can be ordered with various wireless module types.

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

The modem is connectable through its RS232 and RS485 connection, it provides transparent data link to the HES center, through the wireless network.

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.

The device is configurable by our WM-E Term® software.

Our modem can be also installed as a universal external modem by an optional DIN-rail adapter – and it is connectable to any meter type.


Main features

  • LTE Cat.M / Cat.NB wireless module – „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 metrology (optional DC)
  • RS232 and/or RS485 port (2 or 4-wire), RJ12 option
  • Compatible with the Elster® / Honeywell® Alpha A1500, A1700, A1800, A1140/A1160 meters
  • Surge protection option (from 4kV up to 12kV)
  • „Push” data sending (FTP or IEC push, SMS trigger)
  •  IEC 62056-21 protocol
  • Scheduled data sending or triggered by an alarm
  • Remote & safe firmware update and configuration
  • Supercapacitor option (for power outage), notification
  • Expansion option: 2-input module (tariff/switch status)



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

Technical details

Design and outfit

  • The modem is installable inside the meter enclosure
  • RS232, RS485 interface connection (RJ12 outfit option)
  • AC power by metrology (optional DC power)



  • Honeywell® / Elster®  Alpha A1500, A1700, A1800 and A1140, A1160 electricity meters
  • Installable to any meter as universal, external modem



  • „Push” data sending (FTP or IEC push, SMS trigger)
  • CSData call (2G)
  • IEC 62056-21 protocol
  • Scheduled data sending or triggered by an alarm
  • Immediate alarm notification (power loss, input status)


Accessories (order option)

  • RS232 and/or RS485 (2 or 4-wire) connection cable
  • RJ12 outfit (RS232 / RS485)
  • SMA antenna (50 Ohm)
  • DIN-rail mounting clips
  • 2-inputs expansion board (input/tariff switch status)
  • WM-E Term® configuration software (mass fw update, actualization of settings)


Technical data



Product Datasheet

Installation Manual

User Manual

WM-E Term v1.3.43 configuration tool

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