The PVG-1 is a compact pressure or vacuum generator that provides a constant air source ideal for field calibrating differential pressure air flow sensing switches. Setting up the PVG-1 is quick and easy. It has separate coarse adjustment valves for initial pressure or vacuum range selection, a fine-tune output adjustment potentiometer, and a pushbutton on/off switch.

The PVG-1 has an output range of ±0.10 to ±12.0″ w.c. It requires three (3) standard AA size batteries, which provide a minimum operating life of ten (10) hours. A protective cover is included for durability in the field.