Incidental thermometer This is a functional Indoor/Outdoor clock has built-in Analog ambient dual temperature, so that you can always know the current temperature. Waterproof The Premium Rubber Gasket is around the Silent Quartz Mechanism in the back, that locked the cover fits over and sealed. The inside of glass doesn't steam up, because the clock face was be sealed as well. Silent Non-ticking non ticking, quiet sweep second hand ensure a good sleeping and work environment. Precise quartz movements ensure accurate time. Easy to Read 12 inche Round in shape, big arabic numerals and retro brown dial face clear to read.