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2022-2023 Holiday Service & Support Hours:
27-30 December: 08:30 – 12:30
1-5 January: 08:00 – 17:00
Please note the Service & Support offices will be closed 26 December & 6 January.

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Contact Service

International Support:

+49 831 5617 430

[email protected] (North America)

Find your local contact

Instrument Repair

Contact OTT Hydromet Repairs

+49 831 5617 433


Request Repair

If you want to send an instrument for repair please enclose:

Repair Form

Declaration of contamination

Leasing Products

Hydrolab and OTT product rentals are perfect for short term projects or for testing a product before purchase. Our products can be rented on a weekly or monthly basis.



Bench Service Partnerships

Reduce long-term instrument costs, maximize instrument up-time, and ensure consistent reporting: OTT Hydromet Bench Service Partnerships help you get the data you need. 


Service Resources

Visit our resource page for access to all software and firmware downloads, manuals, calibration instructions, and more!


OTT TeamViewer - Remote Support
OTT TeamViewer