No humidor of any size should be without one of these. This brass accented analog hygrometer reads relative humidity AND temperature. One of the best accessories you can buy to monitor the conditions in your box and assure your cigars are always fresh.
Very flimsy, the needle moves with the slightest touch. I also did two salt tests and received two different results. Also it is not very adjustable. Only 5% or so. All in all, save your money and buy a digital.