B b sensors kfs140 to humidity sensor in to 5 case b b sensors kfs140 to this humidity sensor comes in a mechanically robust to 5 housing with an integrated sintered stainless steel filter the to 5 case and vitrified air tight connections means the sensor is capable of being used as a pressure tight separating point between the test chamber and processing electronics the sensor is a capacitive polymer humidity sensor and features such as low hysteresis linear characteristics and rugged me