Reddit Reddit reviews Jellas Pocket Size pH Meter Digital Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement for 0-14.0 pH, ± 0.1 Accuracy, 0.1 Resolution.(Yellow)

We found 25 Reddit comments about Jellas Pocket Size pH Meter Digital Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement for 0-14.0 pH, ± 0.1 Accuracy, 0.1 Resolution.(Yellow). Here are the top ones, ranked by their Reddit score.

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Jellas Pocket Size pH Meter Digital Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement for 0-14.0 pH, ± 0.1 Accuracy, 0.1 Resolution.(Yellow)
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25 Reddit comments about Jellas Pocket Size pH Meter Digital Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement for 0-14.0 pH, ± 0.1 Accuracy, 0.1 Resolution.(Yellow):

u/AcetylenePotatoGun · 14 pointsr/Aquariums

7.4

Might want to consider one of these if you are color blind. pH Meter

u/GrowMyKindBud · 3 pointsr/microgrowery

These have been just fine for me, and it is more economical. I bought 2 of them, one as a back up. They both hold their calibration rather well, and I won't be quite as pissed if I break one as if I had spent $80 on it.

u/AnxiousHerb · 3 pointsr/microgrowery

I have yet to have issues with this one:

https://www.amazon.com/gp/product/B00YBUH4RC/

Works well, accurate (compared with other meters and stays right on)

u/osrsideas · 3 pointsr/microgrowery

Id definitely get a PH pen, those drops are not accurate enough for growing marijuana IMO.
I use this, haven't had any problems with it
https://www.amazon.com/Jellas-Household-Hydroponics-Aquariums-Resolution/dp/B00YBUH4RC/ref=sr_1_3?ie=UTF8&qid=1496106446&sr=8-3&keywords=PH+pen

u/Hewbacca · 3 pointsr/hydro
u/FarmerKellz · 3 pointsr/microgrowery

Bluelab if you have the money for sure, but for a cheaper option I'd definitely recommend a Jellas Ph pen. I used it for ages before I upgraded. Just remember to calibrate once a week or so.

https://www.amazon.com/Jellas-Household-Hydroponics-Measurement-Resolution/dp/B00YBUH4RC

u/atom_stranger · 3 pointsr/fermentation

Buy one of these

u/KnaisGuy · 2 pointsr/microgrowery

I like how you asked for cheaper than $30 and people respond with $200 probes lmao.

I got these two off Amazon cheap, like $15 each.

I've tested them in r/o water and they seem to be accurate, the tds measures up with my water report from the city on my tap water and reads r/o at 0.

I haven't had any issues with my plants as far as ph or PPM.

Here are the ones I got.

https://www.amazon.com/gp/aw/d/B00YBUH4RC/ref=mp_s_a_1_1?ie=UTF8&qid=1483110799&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=ph+meter+for+water&dpPl=1&dpID=41w2JXOokIL&ref=plSrch

https://www.amazon.com/gp/aw/d/B01EWZBB3S/ref=mp_s_a_1_3?ie=UTF8&qid=1483110821&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=tds+water+testing+meter&dpPl=1&dpID=51JKkIc76NL&ref=plSrch

u/g1bby7 · 2 pointsr/microgrowery

ph meter from amazon

I have this one and it works well! 16 bucks too so I recommend this if you are looking to purchase one!

u/Endall · 2 pointsr/HerbGrow

Sorry for the slow response.

That is good your budget is flexible and you want to do it right from the start.

I think the tent is a good choice, and you have lots of vertical height which is great. Are you in a grow friendly state? The reason I ask is they might have some sales at local hydroponic and gardening stores that you might consider. Your plant will have at least a foot above it for clearance from the light and a foot below where you've got your pot. So your actual plant will probably just be around 4 feet tall.

I know a lot of people in america use fox farms soil and the fox farms nutrient line up. Seems to be successful. I am going a slightly more organic method using General Organics nutrients and pro mix with some compost as my soil. The fox farms soil has starting food in it while the pro mix is inert, which means full control of the food for the grower but less of a safety net for the plant if you mess it up.


There is a lot of options when it comes to food, each company has a ton of products. To get you going though I would just use the vegatative food and the flowering food. And some calmag. Everything else is just optional and you can always use next time.

Once you've got your medium and food sorted, you'll want to be able to check your ph levels.


Also grab some of the bottles of ph up and down so you can adjust it accordingly before you feed your ladies.

You'll need a tent to fit your space, I would browse amazon for deals and base your decision on their reviews!

As for what pots to use, I started using fabric pots and they are great. They allow for less over watering because the medium can breathe more easily. You'll want to start in 4 inch pots, then maybe to a gallon, then 3 gallons, perhaps all the way to 5 if you want. Kinda depends on how many plants you decide to keep? I grow small numbers and big plants.

After that you've just got to decide on lighting and ventilation. I don't know a lot about LEDs except that it cuts down on electricity and heat. Some people invest in american companies but they can be quite expensive. A popular method is just ordering cheap LED fixtures from china and not worrying too much if they break because they are so cheap.

/u/Legal_In_OR might stop by here to give some LED advice. He uses top of the line LEDS but I am wondering if he has insight on some of the cheaper options to get you going.




We also have lots of useful information on our website. http://www.herbgrow.co/


Feel free to ask more questions.

u/innocuousremark · 2 pointsr/Kombucha

I got one from Jellas and I'm very happy with it, which I'll link at the end of this reply. It's been quite accurate for my purposes. I occasionally put it in distilled water to make sure it's not falling out of calibration and so far it hasn't drifted, but if it does it has a screw to adjust it back. The batteries are easy to replace, and it's easy to slide it in past the pellicle and get a quick measurement. I'm actually on my second unit because I accidentally broke the bulb on the first one while drying it. Definitely let it air dry. I always rinse it right before and right after using it. It's a great way to make sure you're brewing a consistent product, since you will know exactly when your first and second fermentations are finished. Remember that pH is logarithmic so the rate of change will not be linear, and the difference in acidity between 4.0 and 3.0 is not 25%, it's 1,000%. I start the second fermentation at 3.4-3.6 and finish around 3.1-3.2.

Jellas Pocket Size PH Meter / PH Tester / Mini Water Quality Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools, PH 0-14.0 Me https://www.amazon.com/dp/B00YBUH4RC/ref=cm_sw_r_cp_apap_hkOrr63kSbWzQ

u/creative_influx · 2 pointsr/microgrowery

you need to get a ph meter: https://www.amazon.com/Jellas-Household-Hydroponics-Measurement-Resolution/dp/B00YBUH4RC/ref=lp_393271011_1_3?s=industrial&ie=UTF8&qid=1511300438&sr=1-3 will suffice.

I would recommend a water/nutrient pH of 6.4 for promix as it is a peat based media that is acidic. Meaning your pH should be about 6.2, but if you add 6.2 and hits the acidic peat, it will not be that anymore. Some people argue lower pH for soiless, but let me assure you that at 6.4 in results in a 5.6ish out. I personally think you are safe with a pH 5.4-6.2 out. What I mean by out is run-off, you need to feed enough liquid so that ~20% just drains through. Placing the pot in a pail during feeding/watering helps. This will drain extra salts.

Also, you should add perlite (1/3 volume) with promix as it can cause drainage problems and water retention if you don't. Think about that before you transplant. You may need to also add dolomite lime in the future. Read up on that please, just thinking ahead for you, and letting you avoid mistakes I had made. It doesn't take a lot, but helps to stabilize your pH and provides cal/mag.

>Not sure what EC means

It means Electroconductivity and refers to the salinity of your water.
Do you know how hard your water is? If its too hard, you need to dilute it with RO water. Some people just use RO water only, but supplement it with CalMag solution. If you don't know what's in your tap water, call the water department and ask them. They most probably posted your water analysis online.

Yur just lucky I'm feeling nice ;)

EDIT: And ffs quit giving them miracle grow!

u/myfishisbad · 1 pointr/microgrowery

Like you, I needed a pen but didn't want to pay a cnote for one. I'm already using drops because I feel it's more accurate, but wanted a pen to compare to.

https://www.amazon.com/gp/aw/d/B00YBUH4RC/ref=pd_aw_lpo_469_lp_img_3?ie=UTF8&psc=1&refRID=H7N0T6GZ8T1Q6HVCB7SJ

I went with Amazon because if it craps out or doesn't work properly, I have like 3 months to return it. I mean, theoretically you could do this with the bluelab one and return it before their window runs out, but that feels scummy. I figure if nothing else, I'm only out like 13 bucks.

u/FoolishChemist · 1 pointr/chemistry

They sell little handheld pH meters on amazon for $10-30. Used quite often for hydroponic work. This is the one I use and am happy with it. The plants haven't died! But there are other versions which have more resolution.

u/QuadragintaDuo · 1 pointr/microgrowery

These are the models I went with, they've been working flawlessly so far:
https://smile.amazon.com/gp/product/B00YBUH4RC
https://smile.amazon.com/gp/product/B007VK4YY0

Definitely worth every penny, even if they do end up breaking sooner.

u/greenthumb5 · 1 pointr/Autoflowers

This is the one I am using. Its worked perfectly right out of the box so no complaints here. I hadn't thought of that but I'm going to go do it right now, thanks for the suggestion!

u/captaindaylight · 1 pointr/microgrowery

I ordered and have been using this Jellas pocket sized pH meter.

By pH down solution, do you mean something like this.

u/Numberoneallover · 1 pointr/microgrowery

General Hydroponics GH1514 General Hydroponics Ph Control Kit https://www.amazon.com/dp/B000BNKWZY/ref=cm_sw_r_cp_api_6IN9ybA0556F4

Jellas Pocket Size PH Meter / PH Tester / Mini Water Quality Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools, PH 0-14.0 Measuring Range, 0.1PH Resolution (Yellow) https://www.amazon.com/dp/B00YBUH4RC/ref=cm_sw_r_cp_api_pJN9yb3VW64TM

u/J_T_09 · 1 pointr/Homebrewing

I hope I'm not too late! I'm looking at getting a ph meter to add another element to my brewing.

Does anyone have [this meter] (https://www.amazon.com/dp/B00YBUH4RC/ref=cm_sw_r_cp_api_bgV4ybF47N2CA)? I'm not really finding anything about the temps. it works at.

u/SilentMasterpiece · 1 pointr/microgrowery

Bought this one for last years outdoor crop.

https://www.amazon.com/Jellas-Household-Hydroponics-Measurement-Resolution/dp/B00YBUH4RC

Worked as expected. I harvested in Mid Oct-mid Nov. and had not touched it since then. Yesterday I tested and my tap measured 8.2, exactly what it measured all summer.

u/cococoir · 1 pointr/microgrowery

How much should I be spending on a PH pen are these cheap $20 Ones any good? [Like this] (https://www.amazon.com/Jellas-Household-Hydroponics-Aquariums-Resolution/dp/B00YBUH4RC/ref=sr_1_3?ie=UTF8&qid=1496521064&sr=8-3&keywords=ph+pen)

Also should the PH Be at 5.8 In the runoff, or what I feed the plant

u/Camallanus · 1 pointr/Aquariums

I use this. Mine came factory calibrated. Double-checked with their provided calibration solutions. Their customer support was very helpful since the calibration solutions do not come with instructions:
https://www.amazon.com/Jellas-Household-Hydroponics-Aquariums-Resolution/dp/B00YBUH4RC/

u/epwnym · 1 pointr/Homebrewing

Don't bother with strips. They usually don't have the range/precision you need. You can buy a digital meter for really cheap on Amazon if you really want one.