Large 21/8” high LCD digits can be viewed from 35 feet. Integrates complete clock functions with room temperature monitor and perpetual calendar. Time is displayed in A.M./P.M. or 24-hour military time with accuracy of 0.01%. Temperature range: 23 to 122°F/-5 to 50°C (switchable) with 0.5° resolution. Calendar shows month, date and day of the week with automatic adjustment for leap year. Size is 9.25 x 10”. Supplied with two AAA batteries, wall mount and Traceable® Certificate. Warranty: 1 year.