Volumetric Flow Controlled Total Suspended Particulate TSP High Volume Air Sampling System. Includes anodized aluminum shelter, 8` x 10` stainless steel filter holder with stagnation pressure tap, blower motor assembly, continuous/flow pressure recorder, elapsed time indicator, 30` manometer, volumetric flow controller with look up table,7 day timer. 110v/60 hz or 220 v/50hz
