This instrument delivers highly accurate information about a system's degree of dehumidification and the removal of foreign matter (oils, foreign gases, etc.). The testo 552 is the only digital vacuum gauge whose absolute pressure sensor needs no further servicing, unlike other sensor technologies, yet it still consistently delivers highly accurate readings.
Features of the testo 552 Vacuum Gauge:
- Battery life of up to 2,400 hours
- Maintenance-free absolute pressure sensor
- Measures evaporation temperature of water
- Audible alarm when a limit value is exceeded
- Water and dirt resistant according to IP42