Process instrumentation for all industries


Klay Instruments pressure differential transmitters
• Pressure transmitters
• Differential pressure transmitters


Klay Instruments level submersible transmitters
• Level transmitters
• Submersible transmitters
• Level switches


Klay Instruments flow measurement with differential pressure transmitter
• Flowmeasurement with differential pressure transmitter


 Klay Instruments Temperature sensors
• Pt100 temperature sensors
• Temperature transmitters

Klay Instruments

Dutch manufacturer of instrumentation for the process industry. Our instruments are being used for measuring pressure, level, temperature and flow.

The all stainless steel design is a key feature of our instruments together with the flexibility in design of products. All current industrial process connections can be supplied. Klay Instruments is ISO 9001:2015 certified.

With distributors in more then 50 countries we can supply the right instrument for your application worldwide.

ISO 9001:2015 DEKRA Certificate Klay Instruments

Klay Instruments is ISO 9001:2015 certified!

Klay Instruments is proud to announce that we are ISO 9001:2015 Certified. We are successfully transitioned to the new standard for Quality Management. We continue to deliver high quality process instrumentation and services to all of our customers.

> See the ISO 9001:2015 DEKRA certificate here

ISO 9001:2015 DEKRA Certificate Klay Instruments
Klay Instruments at the Achema 2018 in Frankfurt. Booth G28

ACHEMA – World Forum and Leading Show
for the Process Industries

Klay Instruments will be exhibiting at the Achema 2018 in Frankfurt Germany.

Be sure to visit us in hall 11.1 booth G28.

> Read more about this event

Klay Instruments 40 years

From pneumatic to intelligent transmitters

Klay Instruments has started manufacturing pneumatic 1:1 transmitters back in 1978. Several years later the first electronic transmitters where produced.
And now in 2018 we are manufacturer of advanced microprocessor based transmitters completing a whole range of process instrumentation.

40 years of progress, quite a milestone.
In all these years however the main values have stayed:

  • Flush Diaphragm Technology
  • Temperature compensation
  • All stainless steel instruments
  • Flexibility
40 years Klay Instruments

About Klay

Dutch manufacturer of process instrumentation. A flexible organisation and wide diversity in design of products. Our instruments are being used for industrial automation.


Klay Instruments B.V.
Nijverheidsweg 5
7991 CZ Dwingeloo
Tel +31 521 591 550
Fax +31 521 592 046