Product review (3 stars): Humidity runs false high by 10% points (actual 52%reads 62%)
Its small and compact and clips nicely on the case. It was easy to set up and synch with my phone. It does run consistently 9% and 11% points higher than an Oasis hygrometer and a Planet Waves I wish it had a recalibration buttonIm still getting in the case to make sure its not REALLY at 62%.  I am ready to get another...but there is no place on the phone readout to remind yourself the amount of variance...and I need 4 of them. It may get confusing.  From other reviews it looks like some are off only by 5 or so...