Review on WNJ Mini Thermometer Hygrometer Temperature by Kristina Brooks

Given the price I only use two and the truth is somewhere in between. I disqualified one because it was a few degrees off the others. Also, I degraded the battery life as one died within two weeks of arrival. Although the rest works fine. They probably just need a battery protection tab, but they don't have one, and who knows what battery life will be when one arrives.