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™ II/DRX 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.