Equity by La Crosse 29002 10-Inch Wall Clock with Indoor Temperature and Humidity Gauges Indoor wall clock with inset temperature and humidity gauges; quartz movement Silver-painted plastic casing; glass lens protects analog clock and gauges Measures indoor temperatures from 30 to 130 degrees F and relative humidity from 40 to 100 percent Battery-operated; requires separate purchase of 1 AA alkaline battery Measures 10 inches wide by 1-1/2 inches deep by 10 inches high