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PreSens GmbH

Booth number: F27

About us

PreSens is a world leader in the field of optical sensor technology. We develop and manufacture optical sensors for oxygen, pH & CO2 - parameters essential for life.

Products and services

PreSens is a world leader in the field of optical sensor technology. We develop, manufacture and distribute sensor systems for biotech & pharma, food & beverage industries, scientific applications and medical research. Our optical sensors measure oxygen, pH & CO2.


Probe for Dissolved & Gaseous Oxygen Measurements
The OXYPro is connected directly to the controller. It combines an optical sensor and electro-optical module in one probe. As a digital interface it uses RS485 (PreSens proprietary or Modbus RTU) and has 4 - 20 mA analog output. The optical oxygen sensor type PSt7 has a maximum measurement range of 0 - 100 % O2, and a detection limit of 0.03 % O2. The probe is pre-calibrated, stands steam sterilization (SIP) and cleaning in place (CIP).



The OXY-1 WM is a precise single-channel oxygen meter for wall mounting. It is temperature, salinity and pressure compensated and can be used with sensor spots, flow-through cells and oxygen probes for in-line measurement. OXY-1 WM is compatible with sensors type PSt3 (detection limit 0.03 % oxygen, 15 ppb dissolved oxygen). The housing and all connector ducts are splash-proof (protection class IP64) so the device can be installed even in harsh industrial environments.



Compact Fiber Optic Oxygen Meter
Due to its small outer dimensions OXY-1 SMA can be set up almost anywhere. It is compatible with non-invasive sensors, dipping probes and flow-through cells of type PSt3 (detection limit 15 ppb dissolved oxygen, 0 - 100 % oxygen). OXY-1 SMA has temperature compensation, so most precise measurements in environments with changing temperature can be taken.


PreSens GmbH
Am Biopark 11
93053 Regensburg

Phone: +49 941 94272100
Fax: +49 941 94272111

Lorenz Fischer
International Sales Manager
Phone: +49 941 94272164

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