Mastercool 52236 Airflow+Psychrometer October 11, 2021August 22, 2012 by admein Order Code : MS32 Features : Reads – Humidity, Air Temp., x art Dew Point, Wet Bulb, Air Velocity, Air Volume & BTU. Sensor is built into the remote fan. Protected by a rotating cap. Metric & inch unit selection. Microprocessor circuitry FlyBy Aviation Academy. A Quality product from Mastercool, USA. Technical Specifications : Temp. Range : -4 to 140 F ( -20 to 60 C ). RH % range : 0 to 100 % RH. Air Volume : 0to 99999 cfm. Air Velocity : 1 to 114 ft /s. pdf-Mastercool52236AirflowplusPsychrometer