Reliability at Work

Portable Effectiveness

Greisinger and Delta OHM portable instruments are the perfect solution for measuring environmental and ambient parameters. By utilizing these instruments, you can maximize effectiveness, ensure sustainability, and guarantee a safe production, living, working, and outdoor environment. With their reliable, swift, and accurate measurements, you can be assured of the data you need to make informed decisions.

Specialist by Expertise

For more than 40 years, our expertise has resulted in a comprehensive range of portable instruments. Both the Greisinger and Delta OHM brands are renowned for their accuracy, superior day-to-day field usability, and top quality sensors and probes. With our extensive product range, you can trust that you'll get the precision and reliability you need in any application.


The Greisinger devices have proven to be highly reliable even in tough conditions. They are renowned for their low power consumption and provide consistent, accurate measurements every time.

Aimed at an expert community, Delta OHM is synonymous with the highest quality sensors and precision instruments, perfect for monitoring environmental and ambient conditions.

With Greisinger and Delta OHM devices, you can be sure of outstanding quality, reliability and the highest caliber of products.

Measures & Applications


Measurement of core temperatures (with insertion probe), flow temperature, industrial and commercial climate, climatology, and agricultural (hay bale), environmental, pharmaceuticals industry, Laboratories, Energy Management, indoor monitoring, food processing.

Gas Analysis

Air Hygiene, greenhouse air quality and indoor air monitoring (COVID-19), dive gas, food processing, adjusting and testing of medical equipment.


HVAC, food processing, monitoring of vacuum, hydraulic/pneumatic machinery tests, meteorological pressure

Water Analysis

Aquaculture, hydroponics, water treatment, boiler feedwater, heating systems, laboratory applications, cooling circuits, process water, reverse osmosis, agriculture, food production, fresh and seawater aquaristics, and plant breeding

Sound and Vibration

Environmental noise level, noise monitoring, capture and analysis of sound events, building acoustics, work safety, Industrial noise & vibration, monitoring of inner-city areas

Calibration & Certification

Both in-house calibration centers in Regenstauf and Padova offer calibration certificates according to ISO 17025.

To ensure the highest standards in accordance with DIN EN ISO/IEC 17025, our laboratories are regularly audited by either the DAkkS (the national accreditation body of the Federal Republic of Germany) or the ACCREDIA (the single national accreditation body designated by the Italian government). By doing so, we are able to provide calibration certificates in accordance with these proven standards.

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