Why buy one when you can build it cheaper?
The Hygrotron humidity and temperature sensor from Hygrometrix Inc., Alpine, Calif. (hygrometrix.com), is smaller than a dime but can determine relative humidity (RH) between 0 and 100% with 1.5% ...
Features of the new TI relative-humidity sensor family. The RH sensor's dual capability of measuring temperature. Applications for the HDC302x family. Temperature is the most widely measured ...