Hi birdinwithblue,
It seems by your post that you have a cabinet incubator (GQF). If this is true, and you are trying to set up the bator, you need to set the thermometer in the hole by the door to set the temp. After the temp is set (running for 24 hours) you then move the thermometer to the hole above the humidity tray, and set the wet bulb temp., using a wick, and adjusting the vent holes in back to get the right humidity reading. The thermometer is then placed back in the hole by the door. The full instructions can be viewed at:
http://peafowlareus.com/Humidity.asphttp://peafowlareus.com/WetDry%20Bulb%20Conversion.aspThe baggies full of water should work just as well, as long as you are using the thermometer by the door. I run two GQF incubators, and both of mine have the thermometer in the hole by the door. I also run a digital hygrometer in each to monitor the humidity.
Good luck!