OEM Temperature probes, cable assemblies and accessories for heat pumps

For refrigeration circuits and hydraulics:
developed to customer specifications, validated for specific applications and manufactured in series with consistent quality.

13.–15. Oktober 2026 Chillventa Nürnberg

Halle 6 · Stand 6-214 Testo Sensor GmbH

Get in contact

Testo Sensor GmbH
Testo-Str. 1 | 79853 Lenzkirch
+49 07653 681-0 (Testo HQ)
+49 7653 96597 99
info@testo-sensor.de
Neu: Testo Sensor Webshop

About the Testo Sensor GmbH

Testo Sensor GmbH was spun off in 2010 as a subsidiary of Testo SE & Co. KGaA. As your partner for temperature probes, we specialize in the development and manufacture of application-specific temperature probes, temperature probe assemblies and complete system solutions consisting of probe, mounting and the required qualification stress tests.

Let us convince you of our competence. We focus on what we know perfectly—temperature measurement in our core industries: in heating systems, in heat meters, in the gastronomy sector (e.g. coffee machines) as well as in machine and apparatus construction.

In these areas, we would like to be your leading supplier of temperature probes and convince you of our value in each of your projects. For each field of application in our core industry, we can draw on a broad portfolio of different designs of temperature probes, whose design has been specially developed for the respective application and measuring task and fully qualified on our inspection and test stands.

We always offer you the complete package: the specifically developed technical solution, zero-defect quality (< 400ppm field failure rate), 100% delivery reliability integrated into your logistics processes and all this at a performance-based, competitive price.

Now new: Temperature probe for heat and cold meters

An important component of heat meters are the precise, calibratable temperature probes according to DIN EN1434 for determining the temperature difference at the flow and return of the heating.

We produce these probes according to your specific requirements, on request also paired with all relevant standards and guidelines for heat meters PTB-certified.

We measure your probes on our in-house, highly automated pairing test bench and ensure that you receive perfect twin temperature probes for the inflow and return in sets.