Brands Fluke Calibration

Fluke - 3990 Manual Pressure Control Packs

Self-contained for ease-of-use
Includes precision adjustor to allow increments as fine as 0.00025 psi
1000 and 3000 psi models also provide absolute and negative gauge mode
Includes metering valve for fine control
Vent valve provides easy means to vent pressure to atmosphere
Convenient 1/4 inch NPT connections

3990 Technical Specifications