Testo 551 vacuum/absolute pressure meter

Testo 551 Vacuum/Absolute Pressure Meter

The Testo 551 achieves high precision measurements during the evacuation of refrigeration systems.

Display shows both measured vacuum and the corresponding sublimation and steam temperature of water. i.e. the temperature at which the free water evaporates in the refrigeration system when heat is added
6 bar positive pressure protection
Storage and display of the performance data of up to 9 vacuum pumps on the unit display
Recording of measured data in the unit and reading out data on the unit display
Resolution of 0.0001 bar
Temperature compensation