The Lind Electronics SDT1220-046 rugged shut-down timer / relay driver (RSDT) features a fixed two-hour timer, and 12 VDC input. This delay timer will protect your vehicle's battery from over discharge by turning off electrical loads after the ignition is shut off. Used as a shut-down timer, it can be used with loads up to 20 A. As a relay driver / shut-down timer, it can drive relays up to 200 A.

The Lind RSDT is factory programmed for two-hour delayed shut off.