RE: Re: Moisture

["Steve Morgan" <steve@xxxxxxxxxxxxxx>]

Not according to the instructions. I don't think the water actually
leaves
the body of the sensor. It does tell you to clean it every four months and
to bring it indoors in the winter. The ceramic tip needs to be in
continuous
contact with the soil and not exposed to air.

Steve


-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Bov
Sent: 22 May 2009 17:25
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Moisture


So do you have to keep it constantly topped up with water for it to work?



--- In ukha_d@xxxxxxx, "Steve Morgan" <steve@...> wrote:
>
> I've bought one of those (thank for the recommendation).
>
> Opened it up and it's basically a pressure switch that shorts a
resistor
> across to terminals.
>
> You fill it up with water and, presumably, as the soil dries, it tries
to
> 'suck' the water through a porous ceramic tip under osmosis, reducing
the
> pressure.
>
> It should be simple enough to wire to virtually anything.
>
> Good find, Steve.
>
> Steve
>




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