The largest LCD wall clock ever designed. View the time from 35 feet away. Far more than just a time keeper, the Traceable® Clock integrates complete clock functions, room temperature monitor, and perpetual calendar. Gargantuan LCD digits are 2-1/8 inches high to provide perfect visibility. Time can be shown in AM/PM or 24-hour time. The temperature displays degrees C and F to 0.5° (23 to 122°F and –5 to 50°C). The calendar shows month, date, and day of the week. The clock's quartz-crystal timing accuracy is 0.01%. To assure accuracy an individually serial-numbered Traceable® Certificate is provided from the manufacturer’s ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Clock has a stylish, two-tone color face and a slim silhouette (only 1-inch depth). Size is 9-1/4 x 10 inches. Weight is 19 ounces. Supplied with two AA batteries, wall mount, and Traceable® Certificate. Replacement battery Cat. No. CON1111.