Question about digital thermometer/hygrometer

[chickintexas]

I just did a search for digital thermometer hygrometer on Ebay and all I've got to say is, "Wow!" Ummm...I'm having an issue picking one out. I have a sneaking suspicion that the ones that cost 99 cents aren't all that accurate. Could someone point a couple out to me that would be fine?
Thanks!

 

[babsbag]

You can get a hygrometer, thermometer combo at Walmart for less than 10.00. Then calibrate the hygrometer.

http://exoticpets.about.com/od/herpresources/ss/hygrometer.htm

I was happy with the thermometer part, seemed to read about the same as the other 3 that I had in the incubator.

I didn't really trust any of them.

I have read that people suggest using the Spot Check thermometer by Brinsea.

http://dblrsupply.pinnaclecart.com/products/Brinsea_Spot_Check_Thermometer-351-63.html