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EDC communication module for water meters

The EDC module is a clip-on module for secure remote reading to integrate water meters in Smart Metering AMR/AMI Systems by pulser, M-bus or radio (wireless M-bus).

The Electronic Data Capture (EDC) module for non reactive, electronic pulse detection of all the ZENNER water meters whose registers are equipped with modulator disc enables a secure remote reading and the integration of water meters in Smart-Metering measurement systems.

The EDC module was developped for:

  • Single-jet dry dial meters ETKD/ETWD
  • Multi-jet dry dial meters MTKD/MTWD
  • Positive displacement meters RTKD
  • Bulk meters WPHD / WSD


  • Wireless M-Bus radio module according to DIN EN 13757-4
  • Wireless LoRaWAN® radio module (868 MHz) and wireless Sigfox radio module (868 MHz)
  • Wired M-Bus-module, EN 13757-3
  • Pulse module with forward and reverse flow detection
  • Combined M-Bus and pulse module

Typical applications:

  • Wireless remote readout of water meters with walk-by or drive-by system
  • Remote reading of the meters via M-Bus Systems
  • Remote reading via GSM module
  • Accurate metering of fluids in the industrial and commercial segment
  • Information of the flow volume and consumption by the means of transducer

The water meter can be equipped with the required EDC module during manufacturing or afterwards, receiving a retrofit module

The configuration of the EDC module in case of retrofitting for example is made via the optical interface by using the ZENNER MinoConnect with ZENNER IrCombiHead and the configuration software GMM. Alternative software solutions on request.

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Product images

EDC communication module for wireless M-Bus, LoRaWAN
EDC communication module for wireless M-Bus, LoRaWANEDC communication module for M-BusPiston type water meter RTKD with EDC communication module for water metersZenner M-Bus system in overviewZenner wireless M-Bus radio system in overview


EDC communication module for water meters


  • Battery powered with a lifetime up to 15 years
  • Tampering detection
  • Protection class IP68
  • Retrofittable without destroying seals
  • Detection of water flow direction
  • Secure data collection without the use of reed switches
  • Optical interface for configuration purposes
  • Suitable for ZENNER single-jet, multi-jet, piston type and Woltman water meters with modulator disc

Smart Metering Functions *

  • Self-monitoring
  • Tampering detection
  • Dismounting of module and meter detection
  • Reverse water flow detection
  • Leakage detection
  • Meter Stop detection
  • Meter oversized detection
  • Meter undersized respectively pipe burst detection

* Not all smart functions are available for all model-variants respectively activated ex-works

Product options

Communication Technologies
  • Radio via LoRaWAN®
  • Radio via wireless M-Bus
  • Electronic Pulser
  • M-Bus


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