They maybe Thatcham standard but they are not Thatcham approved, the last alarms which were Thatcham approved were the cars with the flip out key, single button remote, and were fitted in the UK by the importer and were classed as standard equipment, or there was an option to have it fitted by the dealer but then this was a cost option when the vehicle was new, it was also available as an accessory, but to get a Thatcham approval it would have to be fitted by a qualified VAT registered installer.
The alarm on your car Mark is better than Thatcham approved and insurance companies recognise this, nothing would be gainned by telling them otherwise.
My understanding of the Thatcham approval is they have to be installed in the UK to gain this, hence why the earlier Scorpion systems were fitted in the UK rather than actually in the factory when the cars were built, as i said the system in the later cars is a higher spec than a Thatcham approved alarm.
They are as I said Thatcham 1 approval
Is the alarm thatcham approved? or do we all just put down its a factory Fitted alarm when getting insurance quotes?