testo 552 Digital Vacuum Watch with maintenance-free sensor, battery and factory report

testo 552 Digital vacuum watch product introduction:

testo 552 is a digital vacuum meter for vacuum measurement of refrigeration and heat pump systems. In addition, the user can accurately judge the degree of dehumidification of the system and the degree of removal of impurities (e.g. oil, impurity gas, etc.). Unlike other vacuum gauges, the testo 552 is the only absolute pressure sensor on the market that is maintenance-free and can be calibrated in the field

testo 552 digital vacuum table advantages review:

Won excellent evaluation of user product experience

Accuracy up to 1.3Pa (10 mircon)

New absolute pressure sensor, maintenance-free

Anti-impact housing, strong and durable

Last 100 days on full charge