Pressure measurement - Vacuum

The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.

• 60 Built in refrigerants 

• External vacuum probe for faster and more reliable evacuation of the system 

• 4-way valve block with 1/4 in. and 3/8 in. ports 

• Additional 12 month (3 years) product
  warranty with registration 

The testo 570-2 is a digital 4-way manifold gauge that combines the functions of all the old tools and measuring instruments it can so easily replace. The hvac manifold can measure, analyze and log – among other things – pressure, temperature, electricity and vacuum measurements.

• 40 refrigerant profiles stored in the instrument 

• Additional 12 month (3 years) product warranty with registration 

• Automatic heat pump mode – no need to replace refrigerant hoses 

• Real time data measurement and graphical editing with EasyKool software 

The Testo 552 is a high-precision digital vacuum gauge that has all the measuring functions you need for evacuating refrigerant systems and heat pumps. The rugged meter is built to last and tough enough to take the odd knock. 

• 2,400 hours of battery power / 100 days of continuous operation 

• Maintenance-free yet high-precision absolute pressure sensor 

• Extremely precise, rugged, practical – with visual alarm / backlit display 

• Measures pressure / calculates the  evaporation temperature of H2O automatically