Product review (5 stars): Simple and easy to use
I got this for my grandfather who moved to a condo with window heat and a/c. I wanted him to know the ambient temperature amd humidity because his a/c and heater uses numbers 1 thru 10, not am actual temperate.  It is so easy for him,  92, to read and use.  It appears to be accurate and has helped him keep his unit the right temperate and humidity.  It's small enough not to be am eyesore, but the font is big enough to read.