an320:large vane cfm/cmm anemometer/psychrometer plus co2

measures air velocity, air flow, relative humidity, wet bulb, dew point and carbon dioxide

features

• 4'' (10cm) vane allows for more precise readings on larger size ducts
• air velocity, air flow, relative humidity, wet bulb and dew point, carbon dioxide (co₂)
• built-in thermistor for air temperature
• multipoint and timed average calculations
• min/max, data hold, and auto power off
• complete with four aaa batteries and hard carrying case