I have a Loc8tor on my P4: attached easily to the Polar Pro landing gear I bought from Hobby Mounts (especially designed for the P4 - I love 'em!). Anyway, this is no good at finding your drone if you send it 3 miles away and have no idea where it went down, but usually we all have a fairly good idea of the location and then this thing comes into its own! You simply sweep the 'finder' in an arc, when the attached Loc8tor tab is within range (up to around 400 feet in OPTIMAL conditions), then it starts beeping and lights show. As you point the finder in different directions, the tone changes and more / less lights come on, so you get to know which way to walk. I use it on my cat, I bought the 'Tabcat' Loc8tor and it works a treat - we can now find 'Harley' if he gets locked in a neighbours shed. They send you a spare as well and I suddenly had an 'Eureka' moment - 'I bet I can fit that onto the drone!' Hopefully will never use it but, as it weighs only 6 grams, it doesn't affect the P4 in the slightest. I believe they ship Internationally, just use your favourite search engine to find 'Loc8tor'...
