Has anyone experimented with the (Honeywell) Hycal Humidity sensor eg IH 3602 - L I have the sensor working, but have 100mv or so of noise superimposed on the output signal. We are building a PIC based networked temp / humidity sensor system. Any guidance or good alternatives appreciated. Tim Modra: tim@modra.com.au Modra Technology: http://www.modra.com.au Custom Sensors and Embedded Control