The Testo 550 and 557 manifolds are suited to MRO specialists and technicians who wish to carry out commissioning, service and other general maintenance duties efficiently yet also require accessible documentation of their measurement results. The pressure range of the units is up to 60bar across an operating temperature range of -10 to 60°C, with a battery life of 250 hours.
While the Testo 550 is more suited to conventional refrigeration servicing requirements, the 557 is capable of more comprehensive servicing and commissioning of a wider variety of heat pumps and refrigeration systems. Both are equipped with Bluetooth technology and are fully compatible with the Testo Refrigeration app for Android or iOS. Using the app, measurement data can be read on a mobile device such as a phone or tablet.