The Computemp 5 provides a variety of time and temperature data. Features Include: indoor and outdoor temperatures, time of day and time alarm, high and low temperatures of current day and time of occurrence, Temperature Alarm. Useful in orchard, vineyard, and farm management as a frost warning device. Also monitor critical temperature change, in your business, home, greenhouse or wine cellar. Temperature displays in F or C or both alternately. Includes 6' and 30' air sensors. Uses household current with 9-volt battery (not included) for backup.