Product Summary
The Autowatch 68HI is an extremely cost effective security system
developed in South Africa, where car-jacking is a major problem.
It allows the car hijacker to drive off in your car but guarantees
he won't get away with your vehicle, because it will quickly glide
to a halt with the the horn blaring and the lights flashing.
Unfortunately in the UK we are not allowed to have the same 
approach, as it is illegal to tamper with the vehicle electrics whilst
the vehicle is in motion.
The circuit to be immobilised must be the Starter circuit because
when the engine is switched off it cannot be re-started.
The Autowatch 68HI becomes operational every time you begin 
to drive your car. One simple action tells the cars it's you. Only
you know what that action is. But if a thief gets into your car, lots
of unpleasant things start to happen.

Technical Specification
Operating voltage range 9-15 volt DC (negative earth)
Current drain less than 20mA
After 30 seconds there is a short reminder bleep to cancel Hi-jack
(via hidden switch)
Two further warnings will follow
at 10 second intervals if Hi-jack
is still not cancelled.
After one minute, the horn will begin to sound in attention
grabbing bursts.
The engine will begin to loose power.
The car will safely coast to a halt with the horn blaring and the
lights flashing.