Dwyer Series 100
I am not certain of the exact model of this but believe it is used to measure the air flow volume in air conditioning ducts.
"The Dwyer® Air Volume Gage is a precision-built instrument for air conditioning and heating engineers that has proven to be extremely useful both in the field and in the laboratory. Portable and highly accurate, this instrument fills the need for an instrument to accurately determine the volume of air flowing through air conditioning coils. An indispensable aid in proving out cooling system installations, the Dwyer® Air Volume Gage helps to avoid poor performance and mechanical failure. It shows the installer or engineer exactly when more or less air is needed to keep within the critical limits necessary for the most efficient and trouble-free cooling system operation."
- Condition: Used
- Type: Portable Air Volume Manometer
- Make: Dwyer
- Series: 100
- Model: S 50M
- Cat: 31-163886-00
- Range: 0-500 Pacals
- Weight: 1.7kg
The unit is sold with a Works on Arrival Warranty.