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Our Quality Standards

Quality standards:
For more than 140 years, the name OTT has stood for outstanding, innovative, high-quality products. Our high quality standards are part of the corporate culture and are supported by several pillars.

We listen to our customers and analyze their behavior during data collection and evaluation. With the knowledge of what our customers really need, we develop systems and solutions that advance progress.
The latest research findings, innovative technologies and the utmost diligence are the basis for design and development. Each individual development step is tested before the finished product is subjected to a thorough quality assurance procedure. Final product tests in conjunction with customers are the last important touchstone before market launch.

Optimized standard processes ensure smooth production. After the production cycle, each measuring instrument is individually inspected, tested and, if necessary, calibrated. A FAT (Factory Acceptance Test certificate) confirms that the product has left our factory in perfect condition. This is supplied with each device.

Sales engineers with specific expertise in the field of hydrology, meteorology or data technology are reliable partners. They advise our customers and work with them to develop individual solutions.

At the customer's request, experienced service staff accompany all installation steps - from mounting sensors through configuration to cabling the individual components. The final functional test ensures fault-free operation from the start.

ISO 9001:2015:
We are, of course, certified to ISO 9001. The ISO certification is audited every three years and validated at regular intervals. The certification confirms that OTT Hydromet successfully operates and maintains a quality management system in accordance with the guidelines of ISO 9001.
The certificate confirms that our products and services meet our customers’ quality standards as well as statutory and regulatory requirements. Naturally, we only work with ISO-certified suppliers.

The current certificate is available for download in English :


Kaizen – striving for continuous improvement:We strive to constantly improve the existing status of our standards, such as safety, quality and supply capability. Just as with our products, we regularly scrutinize the processes in the company and analyze these for potential improvements. Here, managers and employees work closely together. They identify the potential for improvements, agree on goals, formulate action plans and initiate the necessary measures. The sub-goals achieved are constantly reviewed in order to take countermeasures in good time if the need arises. In this way, we optimize not only internal processes, but also product and service quality - and thus the satisfaction of employees and customers.

ISO 9001:2015 - certified!


Quality and reliability are the first priority for OTT, which shows the certified quality management system in accordance with the requirements of the international known standard ISO 9001.