Looking for a good ppm pen

Hi I am looking for a ppm pen under $100. Im doing a DWC grow with a 2 gal container. Any suggestions on ones that are known to work well?

Bluelab truncheon has lasted me forever and given me no problems whatsoever. Probably had it close to ten years. Not sure of the price anymore but I bet it's around 100

95.99 free shipping on eBay.

DesertHydro said:

95.99 free shipping on eBay.

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Sweet I looked It up what is the diference between ppm 500 and 700 scale and which do you use?

cool2burn said:

Sweet I looked It up what is the diference between ppm 500 and 700 scale and which do you use?

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skip that. get a HM digi EC meter for like $30 bucks off amazon. had mine for 6 yrs now, no issues. spend more on a good pH unit, not so much on EC/ppm

rkymtnman said:

spend more on a good pH unit, not so much on EC/ppm

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Im planning to use nothing but AN for my grow im hoping i wont even need a ph meter

The stuff is supposed to be perfect ph i think

nxsov180db said:

You'll need to check PH no matter what, AN is all hype.. Save your money and go with a different Nutrient Company that doesn't spend so much on marketing which in turn doubles the price of their product... You can buy a cheap tds meter off amazon but you'll want to spend around 75- 100 on a decent PH pen...

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Little late for that lol I bought the complete Advanced Nutrients line I want to see how it produces in this stealthbox I bought.

Was hoping to use solely RO DI water and AN

http://rollitup.org/t/300w-complete-advanced-nutrient-grow.930081/#post-13236567 This is what I got going on so far

cool2burn said:

The stuff is supposed to be perfect ph i think

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oh, it's perfect all right. just follow the advice on the website. don't leave out any bottle they recommend though. big trouble.

rkymtnman said:

don't leave out any bottle they recommend though. big trouble.

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cool i got them all lol

Would you recommend this PH Pen or is there a better option? https://www.1000bulbs.com/product/91910/GROW-BLU2210.html?gclid=Cj0KEQiAnIPDBRC7t5zJs4uQu5UBEiQA7u5Ne6tBemh5G91Bq9UEn5o3vjrpOq8zm74cyFHfcjtLMRgaApnD8P8HAQ

i would agree with what he said above about spending more on the pH meter. if you are following the bottle label ppm should be fine for the most part. ph is more finicky and needs to be spot on for the most part. bluelab meters are awesome ime. i bought a cheap combo ph/ec meter that gets mounted in the res off ebay and that thing BLOWS. it was like 35 bucks. should have known better lol.

To bad the reviews are horrible https://www.amazon.com/Bluelab-PENCON-PENPH-PK-ppm-Pen-Combo/dp/B01ESX395W

I got a ph-ec combo from fleabay. 2 probes around $45. Takes an AC adapter. I do use Cal solution to callibrate and verify every couple months or so. I have one for backup as well. I've tried tons of the cheap China direct ship handheld units for five bucks and checked them and most are pretty good. Again I check with Cal solution. But I like the AC unit. Drop the sensor in the jug. Wait and adjust. The sensors are on a 3 ft cable. ymmv