Hi guys, 
Its been a long time since my last purchases and I am starting to get back in the game  
I ordered the Meade TM005X-M hygrometer and placed it the the wine-cooler which is pretty empty as I only have one box atm. 
Anyway, TMALSS do I need to calibrate the hygrometer or its just 'place and forget'? 
Don't pay attention to the data, I just put all the systems to work, hopefully it will level on 65%RH~ 
P.s. the Temp is in C.