
$504.99 – $613.99

Permanently mounted indoor-air-quality monitor with a low-drift NDIR sensor and automatic background calibration — displays CO2 (to 9999 ppm), temperature, RH, dew point, and wet bulb, with an alarm and relay output to drive an air-handling system.

Portable indoor-air-quality meter with a low-drift NDIR sensor — simultaneously displays CO2 (to 9999 ppm), temperature, and relative humidity, with TWA/STEL air-quality analysis and an audible alarm.