Proline Promag W 400

Electromagnetic flow meter for the water and wastewater industry

General Information
Electrical Data
Mechanical Data
Additional Information
SKU: Promag W 400


  • Type of medium: Liquids
  • Measuring range: 0.06 to 162000 m³/h
  • Accuracy: ± 0.5 % o.r.
  • Process pressure range: up to 40 bar
  • Process temperature range: -40 to 90 °C
  • Ideal for water measurement
  • With EN ISO 12944 corrosion protection for underground installation or permanent underwater use

Fields of application

  • For direct underground installation or permanent underwater use
  • Ideal for water measurement
  • Drinking water
  • Utility water
  • Industrial/municipal wastewater


The Proline Promag W 400 electromagnetic flow meter has international approvals for custody transfer as well as drinking water. It is available in both a compact or a remote version. The Promag W 400 saves time and costs thanks to the broad functionality of its transmitter optimized for Water & Wastewater. In addition, Heartbeat Technology ensures compliance and process safety at all times.

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What do our customers say

Somya Gupta

The conversation was highly helpful to me. I want to know about the suitable sensors that can be used for level measurements for conical tank systems. Mr. Pedro has quickly responded and explained in very ease way. It was nice interacting with him.

Questions & Answers

We are interesting for electromagnetic flow meter battery operated and sent current flow and total flow via GSM. Can you please advise if available and send technical documentation ? Thanks and regards Frixos (1 answer)
by Frixos Michiaoulis , about 1 year ago
Hello, the Promag W800 fits your requested criteria. You can also find the technical information on the product page.
by Visaya - Adrian Gniwotta, 12 months ago
Proline Promag W 400
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What do our customers say

Valentine Godin

Great product and customer care! Reliable, fast and honest... I have recently purchased 2 pieces of equipments; their service has been spot on from start to finish, understanding my needs, providing useful advice and rapid assistance when it was required! Highly satisfied, I highly recommend their teams and would definitely work with them again in the future!

Product Details