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Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear

    • Based on 994 reviews
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Availability: In Stock.
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Arrives Thursday, Apr 3
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Style: Bluelab Soil pH Pen


Features

  • Measures temperature and pH (acid or alkaline) in nutrient solution, soil, and other media for precise up and down adjustment with lab quality glass probe; General uses include growing tent, swimming pool, aquarium, fish tank, coco, and rockwool
  • This hydroponics tool has ATC that provides consistent reading regardless of any fluctuations in temperature, and reminds when you need calibration; Durable design for repeated uses and fully waterproof
  • More accurate and convenient than test strips and other testing methods; Combine with TDS pen, meter, and other testers for full garden nutrients monitoring in water and soil
  • Other features: Auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery and storage cap; Calibration solution, KCL solution, and pH probe care kit are sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers; 1-Year Limited Warranty with proof of purchase

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 13.2 x 2.3 x 0.9 inches; 2.4 ounces


Item model number ‏ : ‎ PENSOILPH


Batteries ‏ : ‎ 1 AAA batteries required.


Date First Available ‏ : ‎ December 5, 2012


Manufacturer ‏ : ‎ Bluelab Corporation Limited - Import (NZ)


Country of Origin ‏ : ‎ New Zealand


Best Sellers Rank: #87,246 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #110 in Lab pH Meters #167 in Soil Meters


#110 in Lab pH Meters:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Accurate
Style: Bluelab Soil pH Pen
Works great. Use it for both in liquid and soil/soiless mediums.
Reviewed in the United States on February 12, 2025 by Tech H
    • Accurate When Used According to Directions
Style: Soil pH Pen + pH Care Kit
We grow 24 blueberry plants in our yard and like to monitor the soil pH which can really improve the yield when correct. Turns out, measuring pH is not so easy. The low cost probes tend to be inaccurate. This is a real pH meter that is much more accurate. However, there is some overhead associated with this type of pen. It does require calibration before use. In addition, there is maintenance requirements including making sure it is being stored in the maintenance solution. Finally, these do have a relatively short life and will need to be replaced after a few years. ... show more
Reviewed in the United States on September 29, 2024 by Jim B
    • why can I not leave 0 stars??? ****updated review****
Style: Bluelab Soil pH Pen
So I found this pen to be such a life saver. I loved the way it tested the ph of my plants in an instant. I went around my little nursery and was able to test them all. I had crazy results, no wonder my plants were not doing well. So they found themselves back on their way. They started to look sad again, within about a week and half. Something wasn't adding up with my mix, there was no way the ph should be that high and I should have to be adding that much ph down. So I recalibrated, and same thing. Who knows? next day half my plants appear dead. I tried to recalibrate again, this time it would not pick up right, the 7.0 solution was picking up 10 and the 4 was picking up 7. I returned and amazon got me another the same day. So I calibrated that one, the solution rang in at 3.1! I was p***ed So I think just got a dudd. I got this last probe march 1st. It started acting up 3 days ago, the screen started to morph to unreadable, temps reading over 180. Are you serious!? I use this multiple times a day. this is a huge expense as right now I am entirely self funded. I work on research on propagation of endangered native plants. There are downright impossible sources to come by at any rate, but to have them fail like this, from errors of a pricey product that I purchased to make it easier to restore them to the environment, this gets them a rating of 1. My heart literally breaks with each loss of plant life that I lose. I cannot just go and buy this stuff at Walmart. I am at a loss and have no idea where to go from here. ***update, I went ahead and got a new pen less than 1 week ago. this makes three in less than 2 months. I have had in the past 2 days, 2 seedlings that have never been cultivated grow. by changing the ph just a small amount. Ph meter worked great all day. Tonight, its not working, screwed up reading, always reads 7.3, will not calibrate. never ever again bluelab. The Dollar tree makes products that last longer. ... show more
Reviewed in the United States on March 23, 2022 by Jason Franklund
    • Worth it's Weight in Gold
Style: Soil pH Pen + pH Care Kit
Review Image by Marty Mig. Marty Mig.
Never drifts and is very accurate
Reviewed in the United States on December 17, 2024 by Marty Mig. Marty Mig.
    • Works great!
Style: Soil pH Pen + pH Care Kit
Bought this and the water one. This does both water and soil. Returned water one. Great quality, don't bother with the cheapos.
Reviewed in the United States on December 23, 2024 by Ken A.
    • We're starting at 4 stars, then go from there.
Style: Bluelab Soil pH Pen
I received my probe in the mail today. I was really confused as to what the KCL fluid was, because there was fluid in both the cap and inside the probe it seems.....I feel like the instructions could be clearer but I figured it out. So after powering on I noticed there's no check mark next to the pH label meaning that it needs to be calibrated. So I can't even use this right out of the box. The pen should not only come calibrated but it should also include one small pouch of calibration fluids as well as KCL fluid, just for backup. I understand these things need to be sold separately as they get used up pretty quick each season, but I feel I should be able to use this right out of the box. What has ended up happening is that there wasn't enough KCL solution in the dibber to bathe the probe, and so I had to add 2 drops water to the dibber and soak it overnight (it really only requires a couple drops of water, which you think it would require more by looking at the dibber but nope). So I have to do two things: let the probe soak overnight now that there's enough fluid inside, and now I have to order the pH calibration fluids and wait for them to come in the mail so I can calibrate this thing before using it. I admit, this is a bit annoying. I understand that maybe the calibration will be lost from when this pen is produced in the warehouse and by the time the buyer receives it. But that's why you should include a little bit of calibration fluid with the pen so I can calibrate it, allowing me to use it right out of the box. Anyhow, it has nice packaging and is a nicely put together device from what I can tell. I don't expect to have any problems and trust it will do its job reliably. I will update this review in the future if necessary. ... show more
Reviewed in the United States on May 3, 2022 by PK
    • A company that stands by their product.
Style: Bluelab Soil pH Pen
I discovered I had an issue with calibration only a couple of weeks over the warranty period and reached out to BlueLab Customer Care. BlueLab support immediately got back to me the same day ( within hours) and asked that I send them some more information on my calibration issues. Without any back and forth with them, and within a day they let me know they were going to take care of me. They honored their warranty and immediately sent me a new pen and a printed user guide/ grow booklets as well. BlueLab and their customer care are a sure cut above the rest. Recommended. ... show more
Reviewed in the United States on August 30, 2024 by engineer
    • Precise and a joy to own.
Style: Bluelab Soil pH Pen
I got the solution to assess the calibration of the bluelab pH pen and been detecting consistent data for water and other solutions. Perfect for knowing how to keep my drinkables at a higher pH so to balance my acidic diet of foods. In doing so, I detoxify my body every day and help the digestion of foods work as it should. In this age of modern polluting factors (a mountain of factors, really) our basic water and other fluids are poisoned by chlorine, chloride , flouride, and other unwanted pollutants. These products change the water pH. Our natural streams (with higher pH because of magnesium and potassium) are no longer the standard we evolved to intake. This other water, delivered via pipes or with well shock treatments with Chlorine isn't part of our evolutionary diet. So the Bluelab Pen permits me to make sure what I drink is going to be something I've evolved to drink that helps me balance the toxic effects of too much of one thing (acidic foods that need to be digested and distributed by alkaline fluids). ... show more
Reviewed in the United States on July 16, 2021 by JSSS

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