E Instruments International; 215-750-1212; www.e-inst.com
Technology Sourcebook
IAQ testing unit
![IAQ testing unit](http://www.foodengineeringmag.com/ext/resources/Issues/2015/06-June/Tech-Source/fex0615ts25.jpg?1434555058)
The E Instruments AQ Expert indoor testing unit offers up to 11 parameters, an active internal sampling pump, dual-temperature TcK inputs, PC software and a USB. It monitors and provides real-time data logging for CO2, CO, % RH, temperature, VOC, O2, NO2, ozone, SO2, H2S, air pressure and formaldehyde.