security devices

[Thomas-the-Terrano2]

Our Caravan Club insurance states, if 'van left unattended for more than 8 hours
it should be secured by either a hitchlock, wheel clamp, chain or tracking device
though they don't appear to stipulate which or a quality of.

Previously I have only used a hitchlock, usually just a locking pin in coupling head
and a 'ball' filler. sometimes an outer guard 'box' lock too.

With new van going to add a wheel clamp for improved visuals, and I believe it
has an alarm fitted to the hitch lock already featured.

Been looking at a tracking device, in Towsure, the Metis uses gps and texted you
if movement occurs. Appears you can ask it if ok too which sounds handy, at £359
and no subscription needed other than topping up its sim card sounds reasonable
especially if can get upto 25% off premium, key word upto!

Any thoughts / users out there. Going for a simple to install ( quick ) clamp as
recommended by Plank in the Bulldog Euro for ease at motorway stops, at home
and on site.