Testo vacuum gauge

The gauge’s absolute pressure sensor requires no maintenance or cleaning. 
Jan. 7, 2014
The 552 digital vacuum-measuring instrument is designed for the evacuation of heat pumps and air-conditioning and refrigeration systems. The gauge’s absolute pressure sensor requires no maintenance or cleaning. The water- and dust-resistant gauge is built to withstand a 6-ft drop, and has a battery life of 2,400 hr. —Testo Inc. 

Booth 1979

About the Author

Ron Rajecki

Sign up for HPAC Engineering Newsletters
Get the latest news and updates.