Qalcosonic W1

About Qalcosonic W1 Ultrasonic Water Meter

This smart ultrasonic water meter is a new generation patented design with wide communication possibilities, IoT technology, impeccable metering accuracy and an extremely durable housing.

Axioma Qalcosonic W1

Metering the Future…

This meter measures the flow of water using ultrasonic technology, which can identify and immediately react to the tiniest changes in any system. Together with a high dynamic range, this ensures extremely high flow metering accuracy and precision even with the smallest water flows.


Ultrasonic water meter QALCOSONIC W1 is designed for accurate measurement of cold and hot water consumption in households, apartment buildings and small commercial premises.

  • Static method of water consumption measurement, no moving parts
  • High accuracy calculation of water consumption
  • Eliminates measuring deviations caused by sand, suspended particles or air pockets
  • Long-term measurement stability and reliability 
  • 9 digits, multi-line LCD. Total volume and instantaneous flow rate indication
  • Sensitive and accurate in low flows, down to 1l/h
  • IoT and AMR, NFC, LoRa technology ready


  • Temperature class T30, T30/90, T90
  • Nominal flow 1.6 / 2.5 / 4.0 m3/h
  • Wide measurement range 
    Q3/Q1 = R 250/400/800 (optional)
  • No straight sections required
  • Installation in any position
  • No measurement of air
  • Environment class E1/M1
  • Protection class IP68
  • Nominal pressure PN16
  • Metering archive registration
  • Maintenance free device, battery lifetime > 16 years
  • Bi-directional flow measurements
  • Flow direction indication
  • Meter parametrisation and archive reading via NFC or optical interface
  • Durable Composite body
  • Measurement units: m3-m3/h, 
    Gal-GPM. ft3-ft3/h (optional)
  • Strainer and back flow valve (optional)
  • OIML R49 Compliant
  • RoHS Directive Reach


  • MID (2014/32/EU)
  • ACS (French Drinking Water Standard)


  • WRAS (UK)
  • KTW (D)

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