(1 customer review)


Axioma QALCOSONIC W1 is a smart LoRa water meter with unmatched accuracy based on ultrasonic technology. It is applicable in homes and apartment buildings but also for small utility operators as a main water metering device. Together with LoRa/LoRaWAN network, it is capable to deliver smart but cost-efficient metering and monitoring solutions to building property managers and utility operators. ThingsLog4u offers the meter with a subscription for thingslog metering and monitoring platform.

Axioma QALCOSONIC W1 Application usage

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

It is the first ultrasonic water meter with the integrated LPWAN technology in Europe.

Axioma QALCOSONIC W1 – SMART ULTRASONIC WATER METER has built-in LoRa/LoRaWAN or Narrowband-IoT (NB-IoT).

  • 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
  • NB-IoT and AMR, NFC
  • LoRa technology ready

Metering and monitoring

Axioma W1 smart water meter is cool but to get the value out of it you will need a way to get the data and be able to reason about it.

For this purpose, you will need a smart metering and monitoring platform and ideally a mobile app for consumption tracking and alerts.

If this is your case and you would like to offer an extra value to you and your customers please check out also our ThingsLog monitoring platform and mobile application service offering.

It will provide you with an easy and convenient way to do smart sub-metering and to get consumption monitoring and alerting.


Technical features

  • Temperature class T30, T50, 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 E2/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 parametrization and archive reading via NFC or optical interface
  • Durable composite body
  • Measurement units: m3-m3/h,
    Gal-GPM. ft3-ft3/h (optional)
  • Strainer and backflow valve (optional)
  • OIML R49 Compliant / EN ISO 4064
  • RoHS Directive Reach





Hygienic approvals:

Ordering options

Axioma models

Please note that the meter is sold with a subscription package for the ThingsLog platform and mobile app. Bellow, you can see views from them.

Smart water consumption profiling
ThingsLog platform water consumption monitoring


ThingsLog mobile app
ThingsLog mobile app


Axioma W1 Getting started documentation

Additional information

Weight 1000 kg

LoRa, NB-IoT

Connectors (nuts) size

G 3/4'', G 1'', G 1 1/4''


  1. John

    Very good LoRa water meter – best value for price!

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