Description Clock can be set in 12 or 24 hour format. Accuracy is ± 1 minute a year. Gauge has a Lithium replaceable battery for back-up, so when power is turned off it does not lose time. Mounts in a standard 2 1/16″ hole. Automatic Display Brightness Control LIFE TIME WARRANTY* *Excluding Abuse & Sensor Cable MADE IN THE U.S.A.
