The Goodall Start-All with Active Sensor Technology (AST) automatically prevents power from being deployed when a user mistakenly selects the wrong voltage, attempts to power up the jump starter when the clamps are not connected properly or when the unit is connected in reverse polarity. This model also offers reverse current shutdown protection. The Start-All is available in both 12V and 12/24V configurations. This unit weighs 365 lbs and can be used in both indoor and outdoor/work truck applications.