Need a new PPM pen

Grow Equipment Meters & Tools
21

Anybody got any feeling about this set? It’s like someone mentioned above - they all literally look like the same product with different names on them.

https://www.amazon.com/VIVOSUN-0-05ph-Accuracy-Readout-Temperature/dp/B06XKMH86J/ref=sr_1_26?dchild=1&keywords=grow+tent+meters&qid=1624383138&smid=A2PQGFJXAT8J9K&sr=8-26?tag=greenrel-20

22

I had the same issue, battery in mine was like 8 years old lol, swapped for new lr44 battery and it worked great again.

23

Should’ve read whole thread before i posted. Just excited I knew the answer.
:grin:

24

Cheap pens fail quickly. I suggest you look through the buyer’s fuide for legitimate ideas on what you need.

Are you using hydro, soil, or soil-less?

25

These super chesp pens never lasted for me. spend an extra 30-40 bucks and get a Milwaukee or Apera model

Milwaukee
I have one of these
https://www.amazon.com/Milwaukee-MW802-Digital-TDS-Meter/dp/B007Z4KIGU/ref=sr_1_4?dchild=1&keywords=milwaukee+ph+tds+meter&qid=1627929027&sr=8-4?tag=greenrel-20

I had one of these for a longtime
https://www.amazon.com/Milwaukee-Waterproof-Replaceable-Electrode-Resolution/dp/B007Z4GZHG/ref=sr_1_8?dchild=1&keywords=milwaukee+ph+tds+meter&qid=1627929137&sr=8-8?tag=greenrel-20

This is just PH, if you want to go the seperate pen route
https://www.amazon.com/Milwaukee-Instruments-Waterproof-Temperature-Pocket-Size/dp/B008932BNE/ref=sr_1_15?crid=14ITVMRGVR9AF&dchild=1&keywords=milwaukee+ph&qid=1627929315&sprefix=milwaukee+ph%2Caps%2C214&sr=8-15?tag=greenrel-20

I owuld try and find the multi-meter because, all electrodes die eventually, even with proper care (very important), wear out, and the MW801/802 has a replacable electrode. I also had an older model SM802 of the Multi-meter that was line green colored.

*Here is the replacement electroe for MW801/802

*This replacement electrode does not work for the old SM801/802 models.

Here are a couple Apera models
https://www.amazon.com/Apera-Instruments-AI209-Waterproof-Accuracy/dp/B01ENFOHN8/ref=sr_1_5?dchild=1&keywords=apera+meter&qid=1628103890&sr=8-5?tag=greenrel-20

https://www.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=sr_1_4?dchild=1&keywords=apera+meter&qid=1628104084&sr=8-4tag=greenrel-20

https://www.amazon.com/Apera-Instruments-Conductivity-Multi-Parameter-Replaceable/dp/B01ENFOIKA/ref=sr_1_1_sspa?crid=3UEIIA1DM6WLS&dchild=1&keywords=apera+ph60&qid=1628104394&sprefix=apera+p%2Caps%2C178&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExRElYMURPTDRPSDZNJmVuY3J5cHRlZElkPUEwMjczODIxMkJFSko3UUc1VE5NTyZlbmNyeXB0ZWRBZElkPUEwNTc0MTkyR0NaV0lDTzhCMkhKJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==?tag=greenrel-20

26

I’m gonna b totally honest with u. I’m making video with mine soon but look up the grow tent or welcome to grow tent. I got one it was 79. Bucks but it’s worth every penny. I get my ppm my ph. All in one very simple to read. I had them green one up there n no I don’t think there correct all the time

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27

Not very accurate. See my post

28

Yeah - it was total crap!
I ended up getting the Apera PH60.
More expensive - but I let my credit card miles pay for it! LOL! Thanks Capitalism One!!
But well worth it!
Learn from my mistake people - DON’T skimp on the pen!!

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