Zero percent humidity

[Richard Brekne]

Hi humidity freaks :)

Just curious... shop use for building is one thing, but in advising
customers at home, DC use, and other less critical applications... I
generally just have one of those 5 dollar digi-hygrometers in my bag.
Supposed to be good for +/- 3 % RH in the range of 23% to 90 %. I
generally point out that anything  under 30 % is just plain too dry, and
anything over 70% is just plain to wet.

Is there any reason for needing more accuracy in these kinds of
instances that I should know about ?

Cheers
RicB

Farrell wrote:
> 
> What kind of an instrument are you using to measure RH @ less than 20%?
> 
> Terry Farrell
>