Garrett Pro Pointer Power Switch

[Funfinder]

Depending on the objects size this little switch makes the pointer 2-3 times more sensitive!

fridge: 25cm -> 50cm
little screw: 1cm -> 3cm

Usage:
1. Move switch to counter position of the pointers tip.
2. Press pinpointers ON button.
3. Move switch until the pointer almost starts beeping / vibrating.
4. If there's some electronical-drifting readjust after some time.

The switch is a little selfbuilt variation of those who are used to keep old windows
closed but even a small nail or little bend screw would work as long as it fits tight.

[Funfinder]

here the additional improvement - tip!
also nice toy for treasure hunting babes
btw. that garrett pro pointer costs a bit more but
it's range is 2-3 times better than with whites bullseye2
and incl. power switch modification the doubled amount of this!

[Funfinder]

Ultra Bright LED

There is a little bug in the ProPointer board:
The LED is connected over 9V and because
this is too high theres an 1.5k smd resistor.

Result: poor light!

Now I found a spot that supplies 4,5volts without
any problems to the detection or rest of the cicruit.
The ultrabright LED uses the same spot as the usual
but connected with an additional cable that contains
a 150 ohm resistor and attached to the shown spot.

Result: bright light!

[Skippy]

Wouldn't changing the 1K5 resistor to 750R have the same effect? Doubling the current from 5mA to 10mA?
White LED technology seems to be rapidly improving- I wonder if a more efficient device could be substituted?
Also, from 9V, you could run two diodes in series,if you could fit the second one somewhere useful.

[Funfinder]

Hi Skippy!

Oops sorry, the 1.5k value was wrong. I thought it would be already that high but indeed it was even the double of that: 3.3k.

For the last months I bridged that resistor by a much higher 270 Ohm one and excanged the little LED with a usual "large" size ultra-bright one, but compared with that formerly result, now (still using the same LED) with the new, above described solution I achieve the double amount of brightness!

There is not enough place for 2 or 3 LEDs because you have to use (the larger made) hole of the standard LED. Depending how thick the plastic at this location is you must remove that whole flat small area where the LED shines to fit 2 or 3 pieces. Not recommended and then it's not that easy to make it waterproofed at this spot.



btw. an important note:

Be careful if you make this mod when opening the housing. First remove the rubbercap of the on-off button, press it to on, release the battery-case screw and press the on-off button carefully down while pulling out the circuit board - otherwise that switch can break apart.

Good luck!