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.
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.
