no thier shite get yeaself bellman
It sounds like the guy is wanting a locator that can be used for terriers or ferrets. If he gets a bellman, hes gonna need some pretty hefty ferrets to put a bellman collar on!
The mk3 locators are ok once you get used to them, but the bellman and flint is alot better.
If you plan on using one locator for the terriers and ferrets, aye go for the Deben. Mk1 or 3. And yes the Deben terrier locator works with the ferret collars. The mk1 box also works with mk3 collars but the depth on the dial would need to be adjusted to suit.
The mk3 box doesn