TO ONLY BE USED WITH MOTORSPORT ECU OR PDM The XR Battery Isolator is the latest generation of motorsport master-switch devices from CARTEK. At 30% smaller size and 40% lighter weight than the previous ?standard? and GT isolators, this XR version offers even more benefits and performance when compared with traditional mechanical master-switches and electro/mechanical safety cut-outs. FEATURES Fully electronic with no moving parts Totally sealed against water and dirt Completely resistant to shock and vibration 0.5 second delay between transmitting the engine kill signal and disconnecting the battery allowing ECUs time to perform a shutdown sequence before electrical power is lost. Fully integrated with built in alternator run-down circuitry - No extra components required Driver operation by a single internal ON-OFF button/switch External operation by single or multiple 'strike' button(s) Buttons / switches connected to Isolator using lightweight wiring and IP67 sealed connector Mounts close to battery for reduced cabling Very small and weighs just 70g Designed and manufactured in UK using high quality components.