Dwyer Instruments AQH-20 | Handheld indoor air quality meter
The Model AQH-20 Indoor Air Quality Meter measures the percentage of humidity, air temperature, and carbon dioxide concentration all in one device, which means a contractor needs to carry fewer instruments. All three metrics are displayed simultaneously on a sizable backlit LCD panel. Instead of showing the outside temperature, the Model AQH-20 can show the dew point or wet bulb temperatures. Through the function buttons, the minimum, maximum, and average values are readily available. The current values are held so they can be recorded by hitting the hold key. The user is alerted by an audio alarm when the environmental conditions are getting dangerous. Batteries and a sturdy carrying case are included with the Model AQH-20.
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