Dwyer AQH-20 Indoor Air Quality Meter

Dwyer AQH-20 Indoor Air Quality Meter measures carbon dioxide concentration, air temperature, and humidity percentage in one device. A large backlit LCD display shows all three parameters simultaneously. Minimum, maximum, and average readings are easily accessible through the function buttons. By pressing the hold key, the current values are held so that they can be recorded. An audible alarm warns the user that the current ambient conditions are becoming hazardous.

Features: 

• All-in-one unit for carbon dioxide, temperature, and humidity
• Large backlit LCD for visibility in dark areas
• User configurable alarms for audible indication of hazardous conditions