Hyrdro farm thermostats Max temp setting?

ok im in the process of ordering a thermostat from Hydrofarm. Just curious to all of you that use it whats the max temp you can set on it?. I read somewhere that somebody said it was 90 F. Also anyone use stat to control temps in there racks with any issues?.

I have heard that alot of people use this stat for their racks and havent had problems, the only thing is that if the probe dies the whole stat dies and u have to replace it.

Max temp. setting is 108. I use them on racks with no issues. They work well for the price.