CDMA 450 / 2G / 3G / 4G / LTE 450 / Narrow Band modems for the Honeywell / Elster Alpha A1500, A1700, A1800, A1140, A1160 electricity meters

Electricity meter
Smart metering
Wireless access
RS232 / RS485
FW updates
Remote access
Product code:

Scalable modem family with wireless data transmitting capabilities, RS232/RS485 data connection.

Suitable for remote meter readout, meter data download and configuration on the provider’s request.

Forms part of the AMI (Advanced Metering Infrastructure) of the public utility company.

Design and connectivity meets with vendor meter standards.


• Supporting CDMA 450, 2G, 3G, LTE 4G, LTE 450MHz and Narrow-Band Cat.M (Telit® modems)
• RS232/RS485 (upon request), transparent link


• WM-E Term® tool, optional DMSet® software
• Immediate alarm notification
• „Push” data sending (Ftp or IEC data push, by SMS triggering)
• Scheduled data sending or triggered by an alarm
• Remote & safe firmware updates

Design & Construction

• Separated and sealed isolation from the meter
• Compatible with the Honeywell / Elster® Alpha  A1500 / A1800 / A1140 / A1160 / A1700 meters
• It can be mounted on any meter as external modem
• Power supply from the metrology (AC power)
• Power input surge protection from 4kV up to 12kV
• Supercapacitor option


• High availability
• Event monitoring
• Data encryption



  • Utility companies, service providers
  • Electricity metering (remote readout)
  • Meter data transmission to the centre
  • Remote operation/tarif mode switch
  • Connecting meters to the Smart Grid
  • Remote access, maintenance


The modem unit fits into the meter enclosure.



The modems are supporting CDMA 450, 2G, 3G, 4G, LTE 450, NB (narrow-band) mobile network standards, static IP addresses. Transparent data transmission, supporting TCP/IP.



RS232, RS485 data connection (2- or 4-wire) can  be ordered by request.


Software features

  • Auto network recovery
  • Remote data download (such as metering values, parameters, load profile, log)
  • Remote configuration and firmware updates
  • Alarm notification and reports
  • Realtime clock (optional)



  • WM-E1S® (module order options)
  • RS232/RS485 connection cable
  • Optional communication antenna (gained, SMA) – according to module selection
  • Optional DIN-rail
  • WM-E Term® configuration software


Technical data


Pay attention to the following products


WM-E Term configuration tool

WM-E Term configuration tool for the Elster and Honeywell compatible metering modems (WM-E1S and WM-E3S)


Narrow Band Modem for Honeywell Alpha meters

External, industrial Narrow-Band modem with serial port for the Honeywell / Elster A1500, A1700, A1800, A1140, A1160 Alpha electricity meters


Narrow Band Modem for Honeywell / Elster AS meters

Industrial Narrow-Band modem for the Honeywell / Elster AS220, AS230, AS300, AS1440, AS3000, AS3500 electricity meters


Load Control Box

Scalable & smart street lighting with remote control, central switching, monitoring and wireless networking access


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