Cair Aviation Ltd

Anyone who can help,

I am trying to contact Cair Aviation Ltd, for details on a vario
manufactured by this company.
Specifically, I need to know the type of connector that is fitted to it
(there is a three-pin and a 5 pin circular bayonet connector) so that I can
purchase the corresponding mating connectors, and also the pin-out for each
connector.

The vario is 80mm diameter and has its own loudspeaker built in, and can
take a repeater for the rear cockpit.

The 'phone numbers on the unit (0293-543832 and 0705-592839 are invalid,
and the website www.cairaviation.com is 'page not found'. Companies House
shows that the company was dissolved in 2010!

If anyone has any information, I would be very grateful,

Many thanks,

Allen Cherry