A good pinpointer has an ability of searching both in the hole and on flat ground. Watch the video: why the Whites TRX isn’t capable of searching on flat ground.
If you’ve dug out the hole and a coin is lying nearby in the excavated dirt… You take the pinpointer, check the hole first and then start checking the dirt. How is it better, however, to wave the pinpointer? Vertically, scanning over the ground pencil-wise? Or horizontally, covering the maximum area in a sweeping motion? Of course, horizontally! The coin will be found more quickly in such a way.
But if the middle part of your pinpointer antenna (detection portion) is blind and skipping, searching on the horizontal plane loses its effectiveness. This is what happens to the Whites TRX.
It should also be added that the Whites TRX pinpointer very often gives false responses… Turn the device on, raise and lower the tip several times – at maximum sensitivity you will immediately receive false responses. And since recently the Whites TRX can be used underwater.