Bulk Hygrometer Wick
To use with the 3018 Dial Hygrometer/Thermometer in your Incubator. Slide one end of the wick up on the probe of the 3018 and tie it on, then put the other end in the water pan and you will get your humidity reading. If you leave off the wick you can use it as a thermometer. Wick is 1/2" wide and order as many yards as you need.