Scentroid’s TR8+ Pollutracker is a portable, cost-effective, multi-pollutant air quality monitoring station. This instrument allows the user to measure hundreds of gases using an array of up to 10 sensors including Photo-Ionisation Detectors (PID), Non-Dispersive Infrared (NDIR), Electrochemical and Metal Oxide sensors. The TR8+ Pollutracker includes a built-in 25.4 cm touchscreen interface, on-device data logging and wireless transfer via email, remote (internet based) firmware update, built-in sampling pump, simultaneous data analysis of all gases, built-in rechargeable battery, on-screen calibration procedure and external decontamination device. The instrument can take snapshot or continuous real-time measurements of high concentration (ppm level) emissions at the source or low concentration (ppb level) constituents in ambient air, as well as GPS position, sampling time, temperature and relative humidity. Measurements can also be made on collected bag samples.