Remotely readable DN50–DN200 Woltmann type water meter for national IoT networks using the HYDRONET transmitter. Can be read from the HYDRONET service for water utilities or from a third-party server, for example. Mechanical roll counter. Product range includes water meters for cold and hot water.

Water meter types:

  • Woltmann
  • Cold water 0–30 °C
  • Hot water 30–90 °C
  • Sizes: DN50, DN65, DN80, DN100, DN125, DN150, DN200

Measurement accuracy: MID R100-H/R50-V (2004/22/CE)

Battery life: Over 10 years (depending on the transmission interval)

Operating environment:

  • Operating temperature 1–55 °C
  • Humidity 0–100% (IP68)


  • Battery
  • Disconnecting the module
  • Magnetic jamming attempt
  • Backflow
  • Leak

Certified mounting positions

Certified mounting positions

SizeInchModelLenght L (mm)Flöde
DN502"WDE-HN20040 m³
DN652 1/2"WDE-HN20063 m³
DN803"WDE-HN225100 m³
DN1004"WDE-HN250160 m³
DN1255"WDE-HN250160 m³
DN1506"WDE-HN300250 m³
DN2008"WDE-HN300400 m³