Ultrasonic water meter QALCOSONIC W1 is designed for accurate measurement of cold and hot water consumption in households, apartment buildings, and small commercial premises.
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Countries adapted for RC1, RC7

In developmentCommercially available - est. Dec, 2021


  • Forget about manual meter data collection. W1 will remotely deliver a wide range of data including consumption information and various alerts (leakages, broken pipes, etc.)
  • Do not worry about losing important data. W1 has a large internal memory to store the history of water consumption.
  • Read data or change the configuration directly on-site. W1 meter has integrated NFC and optical communication interfaces.
  • Measurement accuracy of small or large water flows. W1 meters have a particularly wide dynamic range and measure water flow way more accurately than alternative products on the market. 


  • W1 is longevous and accurate. Ultrasound technology and lack of mechanical parts allow maintaining a high degree of accuracy even after long years of usage despite the quality and impurity of the water.
  • W1 is made of modern and durable composite material which is perfectly suitable for drinking water.
  • W1 is lightweight and compact in size, so all transportation costs can be reduced easily. 


  • W1 can be easily adapted to your business. Custom functions and marking are available upon request.
  • W1 is certified in many countries and can be used for commercial metering all around the world.
  • W1 is perfectly adapted to any direction of installation. You can install them horizontally, vertically, and even from any angle.
  • W1 can be integrated indoors and outdoors. Due to the class IP68 of this meter, various weather conditions are appropriate. 
Downloadable resources
  • W1_datasheet.pdf
  • W1_leaflet.pdf

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Not certified yet


Actionable data

Total, month, day and hourly consumtion, alarms on empty pipe, negative flow, leakage, burst, low temperature 

Roadmap information

Mass production is planned in December 2021


In developmentCommercially available - est. Dec, 2021
We can provide commercial support in the following countries


Warranty duration

6 year(s)


EXW – Ex Works

Technical Details

Product casing

Dimensions (in mm): 110 x 80 x 70

Weight: 180gr

IP Code: IP68

Recommended operating temperature: 0.1° to 35° C




Type: PCB printed


Battery life: 16 Years

Embedded Software

Flashable Firmware: No

External antenna

No connector for an additional external antenna


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