Specifications:   Humidity range  0 to 100 % RH   accuracy 5% Temperature range 4 to 90 F  ( 4 to 32 C)  0.5% Output 4-20 mA  Max Air velocity 2953 ft/min (15m/sec) Power supply: 24 VDC/AC,  Load 50mA Dimensions 4.5 x 2.8 x 1.7 in  (115 x 70 x 43 mm)

Measure humidity & temperature and transmit readings to any electric, electronic analog, or DDC/PLC control or automation system 
 Control application