The testo 565i makes evacuations incredibly easy. Thanks to smart technology and the connection to the testo 552i vacum probe, the 565i automatically stops evacuation once the desired target value is reached and initiates a vacuum hold test automatically. This means that the entire process takes place all by itself. The testo 565i has also proven its worth thanks to its high quality, which ensures that it can even be used safely with flammable class A2L and A3 refrigerants.