Ph Meter Says Different Than Ph Drops

Hey! I just spent the $ for a Hanna PH/TDS/TEMP monitor and it's giving me much different readings than my ph droplet tester kit.

With my color chart droplet kit I am getting just on the orange side of yellow which I assume to be 5.5 - 5.9 based on the color chart.

However my brand new growcheck monitor is saying it's like 6.7.

6.7 in the droplet method has green in it. but mine reads orangie/yellow.

Plus I calibrated it with the calibration solutions and it's the same thing.

Tricky one. I always keep an average on the water source's ph so I have an idea what it should be..

Recalibrate it again (the digital metre), it will be best if calibrating hi and low. If it calibrates both high and low then I would listen to it.

when was the last time you calibrated it?

Headshot08 said:

Hey! I just spent the $ for a Hanna PH/TDS/TEMP monitor and it's giving me much different readings than my ph droplet tester kit.

With my color chart droplet kit I am getting just on the orange side of yellow which I assume to be 5.5 - 5.9 based on the color chart.

However my brand new growcheck monitor is saying it's like 6.7.

6.7 in the droplet method has green in it. but mine reads orangie/yellow.

Plus I calibrated it with the calibration solutions and it's the same thing.

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I have the same meter and love it its worth the 250 bucks !! Dude get yourself some 7.0 calibration solution and the 1500 PPM soluion and calibrate but Hanna in fact calibrates the grow checks before they ship they even have a green certificate to prove so. Also your probe could be dried up!! You have to keep that probe wet wither with water in the cap it came with or like I use a cup of water and just put my probe in that so it doesnt dry out .. Believe me one probe dried out on me and I had to shell out 120 bones to get a new one but hands down you got yourself a kick ass meter all the grow stores here use the same one. Plus the PH drops arent very accurate. Your meter is the best so check it out.

might need some electrode cleaner, from the sounds of this it's a new meter & should be right. take it back to where u got it & be like fix it.

wiseguy316 said:

might need some electrode cleaner, from the sounds of this it's a new meter & should be right. take it back to where u got it & be like fix it.

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Yeah your meter should be right mine came with a green card from the factory showing when and how it was calibrated and the readings.. If you bought yours used or on craigslist sounds like you may have been ripped off and they sold you one with a bad probe how far are you turning the calibration knobs on the grow check.?

A sure way to know if it's the meter or the drops check them both against distilled water. Ph should be 7.0ish and ppm should be 1 or 0.

250 bucks?!! States used to be cheap for electronics in the old days.. what happened? All that slave prison labour making it and its expensive as fook. Makes no sense.

3lions said:

250 bucks?!! States used to be cheap for electronics in the old days.. what happened? All that slave prison labour making it and its expensive as fook. Makes no sense.

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Well we are run by a capitalist government. In the old days it was democracy. Dollar is god in America so everyone tries hardest to take yours.