Product review (4 stars): infant resistant, accuracy verified via undisputed standard. [indirectly traceable to NBS].
nicely made. face covered by what seems to be a splash shield which should protect from projectile fluids, etc. [for those w/ infants]. easy to read display. can't attest to absolute accuracy, but it closely agrees w/ 2 others, one temp. and a cheap analog hygrometer. wanted to see house humidity w/ wood stove since i was beginning to shrivel & arching when ever i was close to metal objects. 15%, seems about right.