A device to warn before Overflow while filling up fish tanks

[ddewalddiscus7]

Hi Guys,

Have you ever had the problem of overflowing your fish tank, when you go about doing something else? Ha ha I did, water everywhere.

So I make myself 6 beeper’s
That will hang over the tank, to warn me that my tank is nearly full.
Now I can fill up my tank slowly, through my RO filter, while I am watching TV

So if you want one
I can sell it to you for $28.00 include battery
Order more than 5 it’s for $20.00
Here are some pictures, see below
Regards
Don