Test Equipment

Testo's professional line of test equipment are designed for heating and refrigeration, ventilation, indoor air comfort, electrical testing and building maintenance applications. They also provide equipment for food safety in restaurants and food transport and storage. Find a wide selection of test equipment to fit your application.


Testo 660X Series Digital Probe-

Testo 660X Series Digital Probe

The testo 6651 rises to special challenges. Paired with the testo 660x probe series, it becomes the top choice for demanding air conditioning technology and a wide range of other applications.


Testo 6621 Temperature and humidity transmitter-

Testo 6621 Temperature and humidity transmitter

The testo 6621 high-performance measurement transmitter is a dependable solution for building air conditioning applications. Offering excellent accuracy, long-term stability, and reliability, this transmitter meets the rigorous standards of building automation, helping to optimize efficiency and reduce costs.


Testo 6631 Temperature/humidity transmitter-

Testo 6631 Temperature/humidity transmitter

The testo 6631 temperature and humidity transmitter is specifically designed for use in greenhouses and laboratories, providing reliable monitoring of critical environmental conditions essential for biological research.


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