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Uses a first-principles technique to directly measure mass-based size distributions in real time. The real-time Quartz Crystal Microbalance (QCM) MOUDI™ Impactor combines two technologies – quartz crystal microbalance, and cascade impaction – to provide mass-based size...

The Model 131B is a high flow impactor (HFI) ideal for sampling particles at low concentrations (pristine environments), for collecting more mass per stage as compared with conventional MOUDI™ impactors, or for obtaining samples in shorter sampling intervals. 

The AccuBalance® Air Capture Hood 8380 is a multipurpose electronic air balancing instrument primarily used for efficiently taking direct air volume readings at diffusers and grilles. It features a detachable micromanometer which can be used with optional probes for increased...

Designed to measure total solid particle number concentrations directly from the tailpipe, whether in the field or during in-use testing.

The DP-Calc™ Micromanometer 8715 is one of the most advanced, versatile, and easy-to-use micromanometers on the market todayImage shown features standard and optional accessories.

The Positive and Negative Duct Accreditation (PANDA) System Model PAN231 provides contractors, commissioning engineers, and research and development technicians with best-in-class choice of test equipment to quantify air leakage in ductwork and other areas as well as the...