Humidity Issue - x24 Chinese incubator YZ-24a HHD

[Bailey1]

Hello,
I had one off this incubators and belive they wont tell the right temperature or humidity especially humidity, don't worry just fill one of the water channels and do not look the humidity that incubator shows to you. I would recommend you to buy and humidity and temperature measures because they wont tell the right conditions.
P.s.
These incubators are headache, please buy an alternative temperature and humidity measure.

I've purchased the same heap of rubbish and have the humidity stuck on 89% Should I purchase a thermometer and just put that on the tray vottom ? Would like my money back actually. Not happy.