The Extech CO260 indoor air quality datalogger monitors eight different IAQ parameters including CO, CO2, dew point, wet bulb, air temperature & relative humidity. Users can manually step through each parameter while viewing measurements on the large backlit LCD which includes a real-time clock.

Utilizing a built-in, maintenance-free non-dispersive infrared sensor, the CO260 monitors CO2 from 0 to 9,999ppm. Programmable CO warning level with audible alarm. Both CO2 and CO monitored with 1ppm resolution. Additional measurement ranges: temperature -5 to 140°F, humidity 0.1 to 99.9% RH, dew point -4 to 140°F, wet bulb 23 to 140°F. Manual store/recall 99 readings, continuous datalogging up to 32,000 readings. PC software with USB interface. Features include min/max, data hold, auto power off, TWA and STEL calculations, pressure compensation for altitude.