TSI dust monitors are direct-reading instruments that measure particulate mass concentration in real time with various models suitable for most any environment and most any application. The SidePak AM510 personal aerosol monitor is a rugged, 16-ounce, belt-mounted laser photometer. The DustTrak desktop and handheld dust monitors measure PM1, PM2.5, respirable, PM10, and PM total simultaneously, with no need for size-selective inlet conditioners. As new, the DustTrak EP (External Pump) models offer the most robust performance for measurements in remote outdoor locations.