The pDR Series of nephelometers provide a wide measurement range and unsurpassed precision in a portable, light-weight, user-friendly package for either active or passive sampling. The world's smallest and most versatile direct-reading, personal, aerosol monitors were designed to provide accurate, real-time measurement of airborne particulate concentrations for numerous applications.
The Quest Technologies 1200/2200 models are high end "Basic" sound level meters. They provide a wide array of sound measurement options, a very competitive price, and the Red/Rugged/Reliable performance associated with all Quest products.
The Series 9000 is the candidate of choice whenever accurate, reliable total hydrocarbon analysis is required. Series 9000 analyzer provides unparalleled flexibility and offers continuous, fully automated gas analysis over a broad range of concentrations