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testo 515 Ex – Flexible Leak Detection with ATEX Certification

Written by Nordtec | Nov 10, 2026, 1:57:15 PM

Different refrigerants and work environments place different demands on leak detection. With the testo 515 Ex, you get a combination leak detector for both flammable and non-flammable refrigerants. With high sensitivity, fast response, a flexible design, and interchangeable sensors, the testo 515 Ex is tailored for technicians who need a versatile leak detector. Its ATEX certification makes it suitable for tasks where the environment also places demands on the equipment.

 

One instrument for multiple types of leak detection

The testo 515 Ex features separate sensors for flammable and non-flammable refrigerants. The sensors can be easily swapped out to adapt the instrument to the task at hand. This provides flexibility for technicians who work with multiple types of refrigerants and need to switch between different applications.

The instrument has a sensitivity as low as 1 g/year and a response time of less than two seconds, making it possible to quickly detect and locate leaks.

 

ATEX-certified for demanding environments

When working in potentially explosive environments, special requirements are placed on measuring equipment. The testo 515 Ex is ATEX-certified for leak detection in Ex zones, where the right equipment is essential for performing the work safely.

With its rugged design ,the testo 515 Ex is suited for professional work in refrigeration, heating ,and industrial applications.

 

Flexible gooseneck and clear display

The flexible gooseneck makes it easier to access hard-to-reach measurement points, such as in tight spaces or behind components. Measurement values can be displayed numerically or as bar graphs to make the results easy to interpret.