The accurite is about the same accuracy as all the other cheap digital units on the market. The error range is 2ºF +/- and 15% RH +/- which is a bit worse that many. Personally the size and needing to place the whole unit in the enclose makes it a poor option. I prefer personally a single probe unit such as what you can buy on ebay. The last set I bought were 4$ for a probed RH and temp. The specs are 2ºF and 10% RH. I bought fifteen of them and found most to be reasonable with in one degree of correct and around the 5%RH. The only draw back is the only metric scale.

What ever you choose I would suggest buying 3 to 5 units and comparing them against each other. They can be very different but typically the majority read the same and usually that is mostly correct. My personally experience with accurites was not good. I had three units the best was on the edge of the specs -2ºF and 20%Rh (the older model) The other two were returned due to beyond spec'd inaccuracy. The problem is unless you own an accurate calibrated thermometer you have no idea what is accurate and what is not. Hence the buy a few advise.

my last one...
http://www.ebay.ca/itm/LCD-Temperatu...ht_3155wt_1398