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PPM conductivity metres for measuring fertilizer strength.      Batteries included These cost $15!!   10 times cheaper than normal!!!

PPM conductivity metres for measuring fertilizer strength. Batteries included These cost $15!! 10 times cheaper than normal!!!

$15.00 $200.00

PPM conductivity metres for measuring fertilizer strength. 10 times cheaper than normal!!!

I was quoted $200 each for these within Australia and I paid $178.00 for my last one

Sometimes China has its benifits.

For calibration charts from PPM to Ec  look here

http://www.dutchmaster.com.au/?language=english&page=growers_guide&topic=ppm_ec_cf_conversion 

So tip your fertiler in to your water tank and adjust the depth to get the right strength

500ppm to 700ppm is what you need  thats     0.8  to 1.1  ec     adjusted fert strength 

 


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