Multi-point and timed average calculations;Complete with four AAA batteries and hard case;Optional air flow cone kit (AN300-C): 8.26 In. (210 mm) round and 13.6 In. (346 mm) square;Measures Air Velocity, Air Flow, Relative Humidity, Wet Bulb, Dew Point and carbon dioxide

• Extech AN320 Vane CFM/CMM Anemometer/Psychrometer Plus CO2, Large

Extech AN320 Vane CFM/CMM Anemometer/Psychrometer Plus CO2, LargeFLIR Systems, Inc.