Water Detector Problem

hgmjr

Joined Jan 28, 2005
9,027
We need a schematic of your circuit and part numbers to be of assistance.

Can you attach one in this thread?

hgmjr
 

Audioguru

Joined Dec 20, 2007
11,248
Pure water is an insulator. Salty water and acid rain conduct a little.
Why not amplify the tiny current with a transistor?
 

bertus

Joined Apr 5, 2008
22,276
Hello,

There is stated the liquid must be conductive:

Features
Ideal anywhere water damage could occur
Will detect any conductive non-flammable liquid
Automatic Reset
6 foot jacketed lead standard
Available in gray only 6 foot jacketed lead standard
Custom lead lengths available
This quote is from this page, where I also could download the manual.
http://www.smarthomeusa.com/ShopByManufacturer/gri/Item/GRI2800/manual/

Bertus
 

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Telewanger

Joined Aug 3, 2008
8
Thanks,

Does anyone know what transistor that I would use for this simple 9 volt circuit? I have no clue. I am totally new to all of this stuff.
 
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