Polltech Instruments manufactures Fine Dust Sampler with Programmable Real Time Clock. Polltech Instruments also manufactures various types of duct and stack monitoring system, workplace monitoring instruments, pressure and flow instruments, radiation monitoring instruments etc. The Fine Dust Sampler with Programmable Real Time Clock, Model PEM-ADS 2.5µ, is used to determine the concentration of particulate matter of size less than 2.5µ in atmosphere. The Fine Dust Sampler with Programmable Real Time Clock has electronic flow regulation and comprehensive data logging. This Fine Dust Sampler has sturdy construction for outdoor use.