Profile: Henry G. Dietz Co., Inc. is a provider of products with low pressure or vacuum technology. Our products are used for detecting air flow, dirty air filters, pressure or vacuum and for measuring & monitoring these functions in clean rooms. We offer low differential pressure switches, manometers with digital readout & control circuits, and pressurization monitors for clean rooms. Our model 192 PDI pressurization monitors are designed to fit within a wall using 2 x 4 studs. It is mounted outside the clean room, with a small monitor inside the clean room, having an audible alarm and two indicators to indicate normal or abnormal pressure. It detects negative pressure in bio containment areas, common in bio pharmaceuticals as well as the positive pressure common to electronic facilities. Our model 602 low air pressure alarm unit operates on a single 9 volt battery and requires no power when the pressure or vacuum is above the set point for ventilated areas.

The company was founded in 1947.