Makita Timer Interface.

TMR includes a white Makita wall mount timer and appropriate mounting hardware, but does not include a battery, the wire from unit to RP12, or an enclosure.

The battery used for backup should be a standard 9V alkaline, and will maintain the timer settings for approximately 150 hours (almost a week) should AC power be disconnected to the RP motor control. While power is applied to the RP, the life of the battery is a little less than its quoted shelf life. Replace the battery every year or so to ensure that the timer does not loose its settings.