Pressure Vacuum Generator, For Use With Manometer, Multimeter, Function Calibrate or Test HVAC Air Flow Sensing Switches Set Points, +/-0.1 to +/-12.0 in WC, 1/8 and 1/4 Adapter Thread Fitting (F)NPT, Features Separate Coarse Adjustment Valves for Initial Pressure, Vacuum Range Selection and a Pushbutton On/Off Switch, Battery Type (3) AA, Includes Protective Cover This Cleveland Controls pressure/vacuum generator can provide a constant air source ideal for field calibrating differential pressure air flow sensing switches. Unit allows easy set up with separate coarse adjustment valves for initial pressure or vacuum range selection, a fine-tune output adjustment potentiometer, and an ON/OFF pushbutton switch. Use the generator with a manometer and multimeter, which provide indication of the.
eBay