Acu-rite thermometer and humidity issue

so i got a acu-rite thermometer with humidity, but the humidity just keep reading HI! i have it placed right on top the heat tape in my rack to try to "dry it out" but nothing is working and ideas of anything i can do?
i know the humidity is deff not higher than 90%.
thanks
tom

Try sitting it outside for an hour or so, see if that does the trick (that is assuming that you don't live in a tropical rainforest lol)

Aside from physically drying your Acurite, you can preform a "Salt Test" to test out the accuracy. It could be your particular Acurite that's off and not the actual humidity...

You need: table salt, a see-through container such as a Ziplock baggie, and a small shallow open container, like a bottle cap.

Place a teaspoon of salt in the shallow container and add a few drops of water - just enough to get it wet. (you don't want a salt water solution, just damp salt.) Place the shallow container in the baggie along with the Acurite. (Make sure the salt does not get on the hygrometer).
Seal the baggie with some air trapped inside and let it sit for 6 to 8 hours. Check the hygrometer reading without opening up the baggie. It should read 75%.

Salt test will work but it is very hard on digital units. Check the cord for damage. The resistive sensors are very sensitive to damage and any can hugely alter the readings. See if it changes at all and if it does not return it if the warranty is not expired. If it is and you see no change toss in and get something else. I personally have never had any luck with them. They have never been in my experience accurate or reliable.

ok thanks everyone let you know how it goes in about 6-8 hours lol
tom