Bluelab pH Pen - ± 0.1 pH Accurate - Durable Double Junction Probe

These are quality. I get a new one every yr or so. They should be good for around 18 months I read. For $100 the peace of mind it brings is priceless. Gardening can be hard enough so this in conjunction w the EC meter make it quick n easy. I wish the backlight stayed on longer and it takes it a minute to settle in and give u an accurate reading. My only 2 complaints.

The thing works as it should. I hope it continues to work if it doesn’t I’ll call him and get some tech-support but other than that calibrated it damn thing works checked it with other meters comes in A-OK to me. I get blue lab a thumbs up on both thumbs

First let me say DO NOT be discouraged from the one star reviews. I can understand someone being upset if they buy a new pen and get one that’s broken but if that’s the case none of us would ever own anything. It is absolutely impossible to buy anything that doesn’t have a bad review because of something that in many cases that has absolutely nothing to do with how the product works, go look up anything you own and love and someone had an issue, seriously go look and see, I’ve tried it there is nothing I’ve found that everyone loves. This pen is awesome if you are a grower and ph is vital and you want to be a next level grower. I’ve had mine 2 years and when it stops working I will immediately get another one. It does take a small bit of little effort to add a few drops of storage solution that you have to buy extra but that last a long time and it’s worth it to me. You add it after each use to keep it hydrated. If it dries out the pen is not ruined like some say but you might have to recalibrate which is easy after your first few times, especially with the step by step YouTube videos available to watch while you’re doing it. Just remember there are a lot of lazy incompetent people out there that all they want to do is push a button and be done with it and expect everything to be instant and do nothing else. It all comes down to how important ph means to you and it is very important to me. This pen is accurate and it’s awesome and requires very little effort to maintain and it has helped me take my growing to the next level. It also works great with my pool to, way better than those test strips they have that do work but not quite as accurate as this ph pen. Thousands of top growers use this pen and depend on it, you see them on YouTube all the time using it. I happened to run across the reviews looking for something else and wanted to see what the hater’s were saying and now that I’ve used the Bluelab pen a couple of years I felt I could give a genuine review based on my experience with it. So, now it’s up to you to decide. Good luck!

It's spot on and calibration is easy It's amazing and last and

The pen seems to work good, somewhat slow at times though. One day I was pressed for time and I accidentally left my pen in a drum of water that I was setting the pH for. It stayed there for about 18 hours floating in that drum. The next day when I took the pen out of the water, the display was damaged so that I couldn't read the temperature and half of the pH number. I thought that this was a waterproof pen. I guess it got the ultimate test and it failed. I'm very cautious and sensitive whenever I'm using any pH pen even if it is purported to be water proof. MY ADVICE... DONT LEAVE THIS PEN IN WATER FOR TOO LONG

This pen is a little pricey but remember you get what you pay for. It works great and it’s easy to calibrate, If you need a quality ph meter this is the one,

Seriously save your money. I keep seeing this pen routinely recommended for some reason as it was to me and decided to write a review to at least save some people some money. Stop buying this overpriced pen!! Its insane what this costs now. I admit I am bitter about it as I truly feel I got ripped off. I run two hydroponics gardens and two aquascaping fish tanks, both with pH sensitive shrimp species. I also run C02 to the fish tanks to help grow the plants, which lowers pH throughout the day. In fact, one of the ways to tell what your C02 concentration is by the relationship between pH of the water and KH (another test), but my point is simply that pH is important to me, and I am just mentioning it to prove I know a thing about water chemistry to say the least. This Bluelab pen is slow to respond at best, but totally way off at worse. Even after calibration it just can't be relied upon to give me accurate numbers. I use a cheapo pH meters and those give me consistent and accurate results. You can buy 5 of those and get better results than this pen gives! Better yet, at least on the aquariums I also use a basic API pH test kit, (where the water color changes based on PH) and again side by side the accuracy of that is hands down better than this pen. Is it possible I just got a bad pen? Maybe. I am aware of the "rules" on the pen - do not let it dry out, store the bulb in the proper solution, rinse it well before using, and pro tip - make sure to tap it so any air bubbles in the bulb float up and do not impact results. But even through all that, it calibrates fine, leads me to believe it will work and then goes wildly off. It cant be trusted. I do not like to write bad reviews but between the cost and my experience I am just hoping to help others. Go buy the $15 ones.

This meter was a game changer for me, took a lot of stresses away since I live and die by accurate ph readings for growing them trees! High quality piece here that I (beyond) highly recommend this product! Easy to use on every level.. easy calibration with great directions to get you going. Speed and accuracy…love the fact it tells you when you got it calibrated correctly and also when it needs it again! 10 stars ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

Me gusto, es fácil de calibrar. Te avisa cuando se necesita calibrar, lo único difícil es conseguir el humectador de sonda. Pero de ahí en más es un gran aparato.🤘🏼

Uno dei migliori misuratori di ph per l'acqua, il prezzo è alto, ma la qualità è eccellente

Muy buen pH-metro, muy fiable y fácil de utilizar

This PH Pen is a definite must have for any growers out there. I rarely give 5 stars but this is one of the very few items worth 5 stars. I use this daily and wouldn't trade it for any other PH pen. It is expensive yes absolutely, the question is how many cheap ones you want to buy before getting this one. Don't waste your money with cheap ones. It's water proof and durable. It will last and you will be confident you are getting the desired PH. Strongly suggest this item. You want to know how tuff it is? After I decided to take a break last year I stored all my equipment in large storage bins. I was suppose to store this in the basement but I accidently stored everything in a shed outside for the whole winter and summer. When I realized what I had done I took everything out and let it get back to room temperature. My Bluelab pen had dried white solution on the probe and I was sure it was done. To my surprise after rinsing and testing my pen, not only was it working but it was still calibrated and accurate.

Toch een hele rijd kunnen gebruiken, na een tijdje wel stuk gegaan. De meetstation binnen kunnen niet vervangen worden, indien dit wel zo was, kon ik enkel dit vervangen. Bestaat ook wel ééntje waar dit wel bij kan.