WM-E1S Modem for SL7000 Meters

Cellular modem specifically designed for the Itron SL7000 electricity meters. Available for LTE Cat.1 / 2G / 3G and LTE Cat.M / Cat.NB networks.

Electricity meter
Smart Metering
4G / 2G fallback
FW Updates
Remote Access

All around the world mobile operators are shutting down 2G/3G networks in order to give way to 5G. Companies that operate smart meters with 2G/3G connectivity must plan the migration to the latest 4G LTE network which is well-positioned to dominate smart metering communication technologies in the upcoming years. The migration to LTE has many advantages, for example, a shorter readout time due to the high-speed network with low latency.

Utilities have two options for migration: replace the meters or upgrade the modems within their routers! The 1st option comes with a high CAPEX, while the 2nd option is a future-proof solution that reduces TCO.

Our company develops cellular modems that work smoothly and are fully compatible with the 3-phase Itron® SL7000 electricity meters. This device was designed to be fully compliant with all Itron standards. Our cellular modems represent a future-proof migration solution to the LTE network with the same functionality, on higher data speed. Configuration and firmware updates can be done remotely, minimizing the need for costly site visits.

This external modem can be mounted using a DIN-rail and connected to the meter through an RJ45 cable.

It can be also configured to “push” the data it reads from the meter to the HES periodically at pre-programmed intervals or triggered by an alarm/event (for example, power outage, cover removal, reverse run etc.). The modem reads actual and stored consumption data, recorded event log, load profile data, and can be used to read or modify certain parameters of the meter remotely.

The device can be powered from the meter’s mains connection of the 57/100V AC power network (phase voltage) or 230/400V AC power network (line voltage).

It can be accessed remotely through the cellular network and it can send data on the Internet by using an APN.

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


Main features

  • Wireless module order options:
    • 4G LTE Cat.1 – 2G or 2G/3G “fallback”
    • LTE Cat.M / Cat.NB with optional 2G “fallback”
  • External modem, compact design (sealed and separated from meter)
  • It can be fastened securely by its DIN-rail adapter
  • Compatibility with the Itron® SL7000 electricity meters
  • AC power supply from the meter
  • RS232 / RS485 meter connection (RJ45)
  • Supercapacitor option (for power outage), notification
  • Embedded, realtime operation system
  • Optional „push” data sending
  • Optional TLS encryption
  • Remote & safe firmware updates
  • Downloadable WM-E Term® configuration tool



  • Utility companies
  • Meter data transmission to HES
  • Smart metering
  • Industrial measurement

Design and outfit

  • External modem, compact design (separated from meter)
  • RS232 or RS485 interface (RJ45 connection with 1m long cable for meter connection/configuration)
  • AC power pigtail connector: 100-240V AC power supply by meter (57.7/100V AC phase voltage or 230/400V AC line voltage can be connected)



  • Itron® SL7000 electricity meters



  • IEC 62056-21 protocol, transparent data transmission
  • Optional „push“ data sending
  • Optional TLS encryption
  • Immediate notification, SMS messages


Accessories (order option)

  • DIN-rail adapter (by anodized aluminum with spring steel wire) for mounting to 35mm wide DIN rail
  • USB adapter (for modem configuration)
  • Supercapacitor (for LastGASP SMS notification in case of power outage)
  • WM-E Term® configuration software


Technical data

WM-E1S SL7000

Product Datasheet

Quick Reference Guide

User Manual

WM-E Term User Manual

WM-E Term configuration tool

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The remote management and maintenance of an IIoT solution can be a real challenge. Improve the network availability and operational efficiency of your fleet!

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