The Testo 550i (0564 2550 01) 2-Valve App-Controlled Digital Manifold enables technicians to control their daily servicing and maintenance work on refrigeration, air conditioning systems, and heat pumps entirely from their smartphone/tablet. Equipped with a 2-way valve block and rugged hook, the testo 550i saves you time with its fast and easy measurements, clearly presented results and digital documentation.

In addition, this compact instrument, designed with the most essential features, automatically connects to various Bluetooth probes (sold separately) for temperature, pressure and humidity, thus ensuring maximum flexibility for wireless working. Its proven quality and great durability guarantee the continuously high performance of your manifold in all conditions.