Because the child standing room should have a higher moisture I was looking for a indoor humidity monitor to observe the optimum humidity level. So I found on Amazon a highly accurate device and cost me only 10.94 $, really worth the money. I put on the wall in my child room so when the humidity is over 65% I can start the dehumidifier for a few minutes. There were some complains about accuracy but I compared the results with other devices and the differences were very small only 2-3 % which in my opinion is acceptable for a device that costs only 11.00 $.
For more info and price – Acu Rite indoor humidity monitor

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October 16, 2011 at 2:56 pm
I bought two of this and work perfect for only 11 bucks one I place it on my children room and other one is in my kitchen
October 16, 2011 at 3:53 pm
There were some differences between values recorded from the device I already have