The Extron CLK 100 is a versatile, battery-operated LCD clock with an integrated thermometer, ideal for monitoring the ambient temperature within an equipment rack or room. The CLK 100 displays the date and time of day in either 12 hour or 24 hour format, and temperature in degrees Fahrenheit or Centigrade. The CLK 100 is housed in a 1U, quarter rack width metal enclosure for easy rack mounting or equally at home in desktop or shelf top applications.