Special Features:

4.718 in. Lg, voltage rating-28 vdc, operating temp range -45/+145 degrees f, temp range -45/+145 degrees f, temp indicating device-included, built-in temp indicating device-included

Properties:

An electrically heated compartment designed to accommodate and maintain at an essentially constant temperature, one or more components, such as, crystal unit(s), quartz; tuned circuits; integrated circuit devices; and semiconductors. It prevents frequency drift and changes in teperature.