Simply; This is the best non-Thatcham approved system you can get. Based upon our CAT1 Thatcham system, we have basically 'copied and paste' some items from the CAT1 and made it into the CAT3.1. The CAT3.1 supercedes the CAT3 by the addition of several useful features, and now includes;
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 CAT3 and CAT3.1 can be upgraded to the CAT1 Flip-Fob, and can also be connected to the Acumen Pager and the optional Starter Immobiliser.