DetailsThis is our large dial analog hygrometer ideal for any humidor, check below for measurements if you need a replacement. It reads relative humidity (RH) . Technical adjustments can be made at the rear of the hygrometer for easy calibrating. Real glass lens. This model is deeper and is often inset in a specially made hole, or mounted with Velcro that is provided.Measurements
- Front Diameter- 1-15/16"
- Back Diameter- 1-7/16"