acu rite reading 93.4 and the corallife one is 94.4 still 80.1 cool side i mist the cool side wit a lil big of water and humidity went up to 69% i dont think the old digi one is accurate is changes way too fast and its goin up with the ehat mat off. and the acu rite is at 93 steady. so the old one has to be factoring in the ambient air with the heat fomr the mat somehow causing it to be way hotter than is is in there. and you all swear by the acu rite one so im gonan jsut take back the old one and keep the acu rite oen.