Anyone know their ADT alarms back catalogue?

[Accelebrate]

Having a sort out and I came across an old ADT external sounder. I was going to sell it but I haven't got a clue what model it is, there aren't any identifying serial numbers on the packaging or the sounder that I can spot.

These look vaguely similar, minus the perspex and logos:

http://www.elmdene.co.uk/Rapier-External-Sounder.h...

But I don't want to advertise it as something that it isn't. Any ideas?

[Accelebrate]

Bump!

[Paulbav]

Not a rapier but not sure what it is, ADT get alot of custom gear made.