CDMA 450 / 2G / 3G / 4G / LTE 450 / Narrow Band modems for Landis+Gyr E350, E450, E550 (type ZxG 3xx and ZxG 4xx) electricity meters
Electricity meter
Smart Metering
Wireless access
FW Updates
Remote Access
SKU: WM-E2SL Category:

Wireless communication modem that has been designed specifically for the automatized remote readout of Landis+Gyr® E350, E450, E550 (type Zxx 3xx and Zxx 4xx) 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 device is installable into the enclosure of the meter and it is connectable through its RJ45 data connector.

The device answers the „Pull” requests of the HES center by transparent data sending through the wireless network.

The modem can send data by CSData call (2G) also.

Suitable for remote readout of registers and consumption data of the connected electricity meters, download of load profile.

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


Main features

  • Supporting the 2G, 3G, 4G LTE Cat.1, Cat.M, Cat.NB networks – module options with „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
  • Compatibility with Landis & Gyr® Zxx 3xx, Zxx 4xx (E350, E450, E550) type of electricity meters
  • DC power supply from the metrology
  • RS232 transparent data connection (RJ45)
  • „Pull” data sending (for HES request), CSData call
  • Immediate alarm- and SMS notification
  • Remote & safe firmware updates
  • Downloadable WM-E Term® configuration tool
  • Supercapacitor option (against power outages)



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

Technical details

Design and outfit

  • The modem is installable into the meter enclosure
  • RS232 interface connection (RJ45 connector)
  • DC power supply by meter
  • Supercapacitor option (upon request), Last GASP notification



  • Landis & Gyr® ZxG3xx, ZxG4xx, ZxD3xx, ZxD4xx (E350, E450, E550 type) meters



  • IEC 62056-21 protocol, transparent data transmission
  • „Pull“ data sending (for HES request)
  • CSData call (2G)
  • Immediate notification, SMS messages



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


Technical data



Product Datasheet

Quick Guide

Installation Manual

WM-E Term User Manual

WM-E Term Appendix

WM-E Term v1.3.38 configuration software