Simply; This is the best non-Thatcham approved system you can get for your Scooter. Based upon our CAT1 Thatcham system, we have basically 'copied and paste' some items from the CAT1 and made it into the Scooter alarm; Remote controlled unit Fully encapsulated electronics for 100% waterproof construction Surface mount technology for reliability Waterproof Remote Transmitter with multi-coloured LED display User definable Nudge Sensor A 'Proper' movement sensor - unusual in the budget end of alarms Hot wire / forced ignition sensing Class-leading low Current draw - less than 5mA Audible confirmation of arming/dis-arming Cool BLUE LED status indicator Hazard light flash on arming and dis-arming Automatic Arming option - 55 seconds after ignition is switched off Movement sensor adjustability from the key fob 'Ferry' mode Don't Forget! The Acumen Scooter alarm can be upgraded to the CAT1 Flip-Fob, and can also be connected to the Acumen Pager and the optional Starter Immobiliser