hello this is my 1st post but very doubtfully will be my last. I am looking for a low cost humidity sensor. It seems that the sht15 is a popular choice for the arduino, but 35-45 bucks each is a bit much. I have also come across the hope rf HH10D for 10 bucks, HUMTEMPSENS for 10 bucks , UPSI G-US.12 for 6.95, and the Humirel HS1101. I make beer wine cheese and am getting into growing indoors. I already can think of a multitude of uses for temp and humidity sensors but dont know where to start. If anybody has any recommendations for a cheap but somewhat accurate sensor please pass that info along. I read in some other site about a guy using the HUMTEMPSENS with an arduino. He said that it uses the same interface as the sht15. So does that mean it uses the same library? I am a newbie to the world of physical computing and my 1st arduino was shipped from adafruit yesterday. Well thanks for reading and I hope that we can find a solution to this issue. It seems I am not the only 1 looking for this solution.