Depending on the terraine... and with a little imagination (like low in the grass, or high in the tree "bark and leaves w/crazy glue") I think you could make one less visable...if not invisable...
But if your parinoid like me you can check the chip "before" you approch and so not walk into a stake-out...(I know thats crazy & rare but I've been busted before) if you knew how much we spent on motion detectors and out door cameras and big heavy (12v) batteries... and then with only 1.5 week battery life.... these (with 30 days on 4D cells) are truly a boon.

bejay... I would really rather know if some kids or an old gieser or say SOME ONE IN UNIFORM stumbled on our grow than not... If you grow in pots you could even have a chance to move a few....not to mention seeing what animals might be munching.... or who might be ripping.....
I would say a good dog and one or two trail cams are standard equipment for out door...
Seems like just last year they were over $250... but for 78 bucks what do you have to loose... 78 bucks???
FC