A portable, fully self-contained source of high purity zero air for dilution calibrators

A portable, microprocessor-based calibrator for precision gas analysers

A microprocessor-controlled ozone calibrator for precision gas analysers, that can deliver concentrations from 50 ppb to 5 ppm at flows from 1 LPM to 5 LPM

A microprocessor based calibrator for precision gas analysers

An optical-scattering, laser-based aerosol particle spectrometer for sizing particles in the 0.06 µm to 1 µm range

A single filter sampler designed for outdoor use at very high as well as very low temperatures (can also be used indoors)

A sequential sampler designed for outdoor use at all temperatures and environmental conditions

A monitor to continuously measure the mass concentration of ambient particulate matter collected onto glass filter tape with time resolution of one-minute

A robust sampling system for real-time user-programmable measurement of aerosols and gases

A type of nephelometer which automatically measures real-time airborne PM₁₀, PM₂.₅, or TSP particulate concentration levels

A light-scatter aerosol monitor for accurate, dependable and relevant data

A High Volume Sampler (HVS) for autonomous, continuous measurements of dust and aerosol particles for later assessment and analysis