Homemade EC metre

[stonedstump]

I found this site that tells you how to make your own EC metre they reckon.

 

What do you all think?

 

 

http://www.saltwatch.org.au/saltwatch/book/28_page.htm

[Frazz]

The page cannot be found

[stonedstump]

It works for me. If you try posting it into your web browser it should work.

 

I don't think the link function worked properly when I posted.

 

http://www.saltwatch.org.au/saltwatch/book/28_page.html

[Frazz]

yea cool

[Stoney]

works now file that one in gazza's intray and see what he thinks he the king of ghetto and duct tape but from what i can see unless you just had all this stuff already around the house you would be able to get a good ppm and ec tester off of ebay for alot cheaper

[een]

I don't think that will work as an EC meter, for example if you put the electrodes deeper you will read a higher EC. This works though:

 

http://www.emesystems.com/OL2mhos.htm

 

[stonedstump]

Wow, very interesting een. Have you ever tried it yourself?

 

Looks way too complicated for me, although I understand it I could never build it, .

 

Cheapest EC metre I can find is bloody $80 and then $10 for postage.

 

Anyone know of a cheaper place to get an EC metre?

eBay is full of expensive metres, no cheapies!!.

[een]

Yeah I built it but by the time you put it in a box and buy calibration solutions, you are worse off. Theres a chinese knockoff of the NZHydro Truncheon on ebay for $35 + $10p/h, assuming it lasts as long as the original thats pretty good isn't it? I bought my NZHydro truncheon 2nd hand for $70 about 3 years ago, haven't even had to change batteries yet.

[Luke Skywalker]

I wouldn't assume that anything made as a knock off would have anything like the durability and all round reliability of a Bluelab (formerly NZ hydroponics) truncheon. I betcha the knock off doesn't have a 5 year warranty.

 

Look at it this way. If you divide the cost of a truncheon, about 130 bucks or so, give or take, by the 5 year warranty that means it's only costing you $26 per annum to have a very reliable and solid e.c. meter which will last practically forever. I think that's a pretty damn good price myself.

[Ozzy420]

I was looking on ebay last night and seen an ec meter for $49 buy it now + $10p&h, i was thinking of getting one but mite wait and save me $$$ and get a truncheon.

 

I have a TDS meter i got off ebay that i use but it can be a pain to work out tds into ppm or ec witch i havent done as yet and are still looking for a chart to help me convert tds into ec and ppm that is easy to understand...