Today we talk about the BeachBuoy of Prodoor.
The usual impermeable custody? That one what occhieggia on the shelves of the supermarkets? That one in no whom the own smartphone would insert? Quella in cui nessuno infilerebbe il proprio smartphone?
EH NO!
Here the difference is big! to begin much, the quality is the usual Prodoor, and as if it is not enough the custody is certified IP57 and IP58 at British Standard Institute's. We see now some tables to understand thing means IP58: Vediamo adesso alcune tabelle per capire cosa significa IP58:


Then, these tables (of origin Mitutoyo) itself evince what 5 of the first digit mean protege with the dirty thing, and the second digit (7 and
indicate the resistance to the full immersion, in this case with autocertification to 5 metres.
And up to here it would be an advertising spot, but we before risking our cellular beloved want to go more to fund: LITERALLY!
I have decided to test personally the resistance of
this custody, I have improvised then one little bank of test.

Basin to be pressurized, that is a saucepan to opportunely modified pressure.

Pressurisation fluid, that is compressor air with pressure regulator.

Dampness indicator, that is a piece from paper to be inserted in the custody (if it gets wet ….)
Test cell-phone, that is a Nokia 3210 to be inserted in the custody so that it does not turn out to be flat.

UNWINDING OF THE TEST:
As already indicated, in the perfectly dry custody they have been inserted a sheet from paper and 3210 … …

The saucepan to pressure has been filled with water.

Into whom then the custody has been put … … …

All of it floats … … it has been provided to zavorrare with a round in iron!

Closing of the lid and road! Acting on the regulator I have pressurized the container to 0,5 bars returned to 5 metres of the homologation.
Scrutinising in net I have seen that generally the proof pressure is maintained for 30 minutes, and so I have done.
To the reopening ….

EVERYTHING PERFECT ONE, not even a water drop!!! Up to here are the promises maintained, but one wanted to exaggerate? Fin qui le promesse sono mantenute, ma se uno volesse esagerare?
I repeated the experiment, when each time was increasing the pressure of 0,5 bars: I have arrived at 2 bars, then the saucepan was beginning to creak. if only it is not at all, but I have stopped! magari non è niente, ma mi sono fermato!

But into each proof a water drop has not entered, the paper (and the cell-phone) perfectly dry!!!

I remember, for whom it was not practical, that 2 bars correspond to an immersion to 20 metres!!
A remarkable result, perhaps academic I endorse a datum that the reason of this custody is that of letting carry the cell-phone in beach or in boat, but that certainly it reassures on the goodness of the product.

As for the true equipment subwaters, if you use it to the sea always remember of risciaquarla at the salt water and of avoiding the sand infiltration in the closing mechanisms!
NumberSix