About This Dependable: The testo 550i with its rugged housing (IP54) was particularly created for harsh environments, offering the reliability needed by HVACR technicians User-friendly: With its compact design, 2-way valve block and automated probe connection, the HVAC meter provides convenient handling in difficult to access environments Smart App: Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate service and maintenance tasks and send results directly from the job site Efficient: The wireless manifold determines high and low pressure as well as evaporation and condensation temperature. Optionally add suitable accessories for an enhanced performance Accurate: Thanks to its unique measurement technology and extremely sensitive pressure sensors, the air conditioning meter achieves particularly quick and easy measurements Overview Brand : Testo Material : Metal Item dimensions L x W x H : 3.03 x 4.29 x 2.36 inches Item Weight : 16 ounces Number of Items : 1