I have a stabil-therm dry type incubator from Blue-M, I need to control the temp.

I acquired this Blue-M dry type bacteriological incubator from a man who said he used it as an egg incubator, I am not able to adjust the temp, it goes to over 50 celsius, I need it to be 99.9 -100 f.

It is gravity convection

I will also need to keep the humidity between 60 and 80,

Any help will be appreciated