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.

E Instruments International; 215-750-1212;