RSA Digital 4 Valve Manifold Kit, with Vacuum Probe
The Testo 557 four valve manifold with a built in vacuum gauge is the next high performance, low cost Refrigeration System Analyzer from Testo. The built in vacuum gauge allows the technician to know when they have reached the limits when evacuating a system.
Building upon the easy to use platform designed by Testo, the 557 has 2 NTC temperature probe inputs and can simultaneously calculate superheat and subcooling in real time. The 557 is ideal for servicing, maintaining and commissioning all types of air conditioning systems.
The Testo 557 4 valve HVAC manifold can simultaneously measure superheat and subcooling and is pre-loaded with 40 refrigerant profiles eliminating the need for manual PT charts. The built-in vacuum gauge lets you know when you have reached the limits when evacuating a system.
The 557 will also perform leak tests on AC/R systems with temperature compensation, insuring accurate results. The Testo 557 retains the robust housing that protects the analyzer from the everyday bumps and drops.