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APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Purchase options and add-ons
Brand | Apera Instruments |
Special Feature | Waterproof |
Color | Regular Kit |
Age Range (Description) | Adult |
Included Components | PH20 Value pH tester kit |
Specification Met | CE, ISO 9001, RoHS |
Product Care Instructions | Hand Wash Only |
Unit Count | 1.0 Count |
Power Source | Battery Powered |
Number of Batteries | 4 AAA batteries required. (included) |
About this item
- Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122F)
- Backed by Apera quality pH sensor with low impedance, ensuring high response rate
- Comes in a rugged carrying case with pH 4&7 buffers and a lanyard
- Auto recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement
- Up to 2000 hours' continuous operation, powered by AAA batteries
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 7.01 x 1.61 x 1.18 inches; 3.9 ounces
- Item model number : PH20
- Batteries : 4 AAA batteries required. (included)
- Date First Available : April 22, 2016
- Manufacturer : Apera Instruments
- ASIN : B01ENFOHN8
- Country of Origin : China
- Best Sellers Rank: #1,645 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #2 in Lab pH Meters
- Customer Reviews:
Product Description
Simply the most reliable pocket pH tester with the best value for general-purpose pH testing e.g. hydroponics, horticulture, pools and spas, water treatment, beverage making, education, environmental monitoring, etc. Up to 3 points of Auto. calibration and 0 to 50˚C Auto temperature compensation (ATC), 0. 1 pH Accuracy with 0 to 14. 0 pH measuring range; Auto. recognition and indication of stable values improves repeatability, saving you the trouble of guessing when to manually hold measurement. PH20 comes with a complete kit of premixed calibration solutions (4.00 and 7.00), 4 AAA batteries, and a lanyard all in a portable carrying case. Smart Self-diagnosis, warning of incorrect buffer solutions and incorrect calibrations. IP67 water-resistant. Up to 2000 hours' operation powered by AAA alkaline batteries. The product is CE and RoHS certified, and is manufactured under an ISO 9001: 2015 certified quality system.
From the brand
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Located in Columbus, Ohio, Apera Instruments specializes in developing water analysis sensors and instruments since 1991. Millions of Apera products are being used by customers in over 50 countries.
We understand that consistently getting accurate measurement can be a complex process. Therefore, we are committed to becoming your trusted partner in water analysis by providing ongoing support to ensure you get the most reliable results possible.
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From the manufacturer
Features
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High-sensitivity pH glass membraneApera's proprietary lithium glass membrane crafted out of 1200˚C rare metals ensures quick and precise pH measurements. |
Sensor ShieldA sensor shield is installed to protect the sensitive glass membrane from accidental damage. |
Large LCD DisplaySimultaneous temperature display along with stable reading and calibration icons. |
Easy 1–3 point Auto. CalibrationComes with lab-grade calibration buffers ready for use, good for up to 10 times of calibration. |
Suitable Applications
Powered by AAA alkaline batteries
- Accuracy: ±0.1 pH, ±0.5˚C
- Range: 0 to 14.0 pH.
- 32 to 122˚F (0 to 50˚C) Auto. Temp. Compensation
- 1-3 point Automatic Calibration
- Up to 2000 hours of operation powered by AAA batteries.
- Self-Diagnosis function automatically tells you what might go wrong during calibration and how to fix.
Value Series PH20 pH Tester Kit
Quick. Simple. Reliable
Apera Instruments PH20 Value pH Tester Kit simply provides reliable and quick pH measurements for general water solution applications such as pools and spas, beverage making, horticulture, education, aquarium, aquaculture, water treatment, education, environmental monitoring, etc.
- 1–3 point automatic pH calibration
- Auto. buffer recognition and reminder of stable readings (smiley face icon)
- Automatic Temperature Compensation from 0 to 50˚C (32–122˚F)
- Ready-to-use bottled calibration solutions included in the kit
PH20 Value pH Tester | PH60 Premium pH Tester | PH60S Food pH Tester | GroStar GS2 Soil pH Tester | GroStar GS4 pH/EC/ppm Tester | ZenTest Smart Combo Tester | |
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Customer Reviews |
4.5 out of 5 stars
8,469
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4.5 out of 5 stars
3,077
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4.5 out of 5 stars
3,077
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4.6 out of 5 stars
124
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4.6 out of 5 stars
124
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4.2 out of 5 stars
291
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Accuracy | ±0.1 pH | ±0.01 pH | ±0.01 pH | ±0.1 pH | ±0.1 pH; ±0.1 EC; ±30 ppm | ±0.01 pH; ±1% F.S |
Measuring Parameter(s) | pH, temp. | pH, temp., mV (ORP can be measured with an ORP probe installed) | pH, temp., mV (ORP can be measured with an ORP probe installed) | pH, temp., mV (ORP can be measured with an ORP probe installed) | pH, EC, ppm (500ppm/700ppm), temp., mV (ORP can be measured with an ORP probe installed) | pH, temp., conductivity, TDS, salinity, resistivity, mV (ORP can be measured with an ORP probe installed) |
Suitable Applications | General water solutions e.g. pools and spas, education, aquarium, enviromental monitoring, beverage making, hydroponics, water treatment, etc. | General water solutions e.g. pools and spas, education, aquarium, enviromental monitoring, beverage making, hydroponics, water treatment, etc. | Food samples (cheese, fruits, meat products, sushi rice, yogurt, cream, sauce, etc.) and general water solutions | Soil, rockwool, coco coir, hydroponics, aquaponics, fruticulture, floriculture, aquarium | Hydroponics, aquaponics, fruticulture, floriculture, aquarium | General water solutions e.g. pools and spas, education, aquarium, enviromental monitoring, beverage making, hydroponics, water treatment, etc. |
Calibration | Auto. 1 to 3 point calibration (7.00/4.00/10.01) | Auto. 1 to 3 point calibration (7.00/4.00/10.01/1.68/12.45) | Auto. 1 to 3 point calibration (7.00/4.00/10.01) | Auto. One-tap 1 to 3 point calibration (7.00/4.00/10.01) | Auto. One-tap 1 to 3 point calibration (7.00/4.00/10.01, 2.77EC) | Auto. 1 to 3 point calibration (7.00/4.00/10.01, 1413µS/12.88mS/84µS) |
Probe Type | Regular glass bulb with sensor shield | Regular glass bulb with sensor shield | Swiss spear pH probe with open junction | Swiss spear soil probe with PTFE junction | Double-junction pH+titanium EC combo probe | Double-junction pH + firm platinum black combo probe |
Replaceable Probe | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |
TruRead Function | N/A | N/A | N/A | ✓ | ✓ | |
Backlight Screen | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |
Smart Data Management | N/A | N/A | N/A | N/A | N/A | ✓ |
Calibration Reminder | N/A | N/A | N/A | ✓ | ✓ | ✓ |
What's in the box
Videos
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Why I Recommend The Apera PH Meter
Scott’s [S]mart Reviews
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Customer Review: No more of my $ to Apera
Foureyedgrrl
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1:21
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High quality ph tester; your plants will thank you!
Meike Babel Tennis
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the speed, accuracy, and ease of use of the pH meter. For example, they mention it reads the ph in less than 20 seconds, provides accurate results, and is simple to use. That said, opinions are mixed on performance, quality, and readability.
AI-generated from the text of customer reviews
Customers like the accuracy of the pH meter. They say it holds accurate readings, is easy to calibrate, and provides accurate results. Some say it's reliable when calibrated. Overall, most are satisfied with the accuracy and reliability of the product.
"...Everything seals, fits, and was thought out and designed for the end user." Read more
"Great kit. Has everything you need to calibrate meter. Reliable accuracy. Nice plastic storage box." Read more
"This is well made, easy to use and seems to be accurate" Read more
"...made device - even though the included instructions and funky calibration procedure hold it back from a five star rating...." Read more
Customers find the thermometer easy to use and calibrate. They appreciate the clear instructions and the laminated instructions that come with the product. They also appreciate the crystal display and the easy functionality of the 2 buttons.
"This is well made, easy to use and seems to be accurate" Read more
"...It’s extremely easy to calibrate and even easier to use than most other meters...." Read more
"...This is easy to use and calibrate. I was unaware the ph fluids had expiration dates so don't stock up like I did...." Read more
"Meter comes in a carry case with calibration fluids and clear instructions. Has a quality feel and appearance. Calibrated quickly...." Read more
Customers like the speed of the meter. They mention that it reads the ph in less than 20 seconds and is accurate. They also say it turns on quickly and returns the PH value and displays a smiley to show. Overall, customers are satisfied with the speed and ease of use of the product.
"...which is easy to read during normal operation and is much quicker at determining the PH level versus the cheaper ones where you need to wait a while..." Read more
"...Better than all the Hanna ones I’ve used, and with a quicker read out." Read more
"...I followed the instructions and calibrated but it wasn't testing my water very quickly...." Read more
"...It's easy to calibrate. Accurate and reliable. It returns a reading quickly. Comes with a nice case...." Read more
Customers like the storage of thermometer. They mention that it comes with a very nice storage case lined with foam padding. They also appreciate the carrying case, which holds the calibration solution. Customers also mention that the portable case is really nice and convenient.
"...Reliable accuracy. Nice plastic storage box." Read more
"...Comes in a nice case too so I’m not constantly misplacing it like the others. Great product." Read more
"...I was trying to test!lol I really like this little pen and it came with a little case and ph4.00 and ph7.00 calibration liquids so I don’t have to..." Read more
"...Accurate and reliable. It returns a reading quickly. Comes with a nice case. Be sure to order more calibration solution and calibrate frequently." Read more
Customers have mixed opinions about the readability of thermometer. Some find the LCD display easy to read during normal operation, with clear numbers. Others say that the screen is small and can be hard to read.
"...It has a nice LCD display which is easy to read during normal operation and is much quicker at determining the PH level versus the cheaper ones..." Read more
"...It is so much more accurate and easy to read than the old liquid dropper test kit I was using before to determine pH...." Read more
"...Another thing I realized upon arrival is that I can't get an accurate reading on my saltwater tank unless I purchase the 10 testing solution, which..." Read more
"...Easy to read backlit display...." Read more
Customers are mixed about the performance of the thermometer. Some mention that it works well, while others say that it stopped working after a few months.
"...Everything seals, fits, and was thought out and designed for the end user." Read more
"...The Apera model seems to work very well and when tested in calibration solution is usually spot on...." Read more
"...One day, a little less than 6 months, it stopped working and would not turn on...." Read more
"I ordered this for testing the ph of plant water. Works great but seems to lose calibration rather quickly...." Read more
Customers are mixed about the quality of thermometer. Some mention it's well-made, easy to use, and accurate, while others say it fell apart into the water. The internal parts soaked. Some say it looks and feels quality item, while other say it only lasts about 8 months and the glass probe slowly degrades.
"Great kit. Has everything you need to calibrate meter. Reliable accuracy. Nice plastic storage box." Read more
"This is well made, easy to use and seems to be accurate" Read more
"...When mine kept drifting and not showing a stable/believable number I contacted Apera...." Read more
"...Mainly because it appears to be a higher quality, well made device - even though the included instructions and funky calibration procedure hold it..." Read more
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Top reviews from the United States
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The Apera model seems to work very well and when tested in calibration solution is usually spot on. It has a nice LCD display which is easy to read during normal operation and is much quicker at determining the PH level versus the cheaper ones where you need to wait a while for them to stabilize and typically have much smaller and darker displays. That is the good news, however, the calibration procedure is a bit clunky compared to even the other cheaper ones I have. Partly due to the instructions which are very poorly written, hard to follow and provide contradictory information when it comes to things like storing the device. I understand it was made in China but for gosh sake, hire someone who knows how to speak and write in English to design the manual so it makes sense.
In my application PH is very important so having more than one tester is not a bad thing. But it I had to pick just one and price was not an issue....then yes, I would chose the Apera model, but by a very small margin. Mainly because it appears to be a higher quality, well made device - even though the included instructions and funky calibration procedure hold it back from a five star rating.
But in the end it is only slightly more accurate then the $10-$15 ones I already have. If the accuracy of the PH reading is that important to you and you want the best and do not care about spending $50, then the Apera is a fine choice. But if you are on a budget and are using a tester to check the PH of say swimming pool water, a cheaper model will work just fine. I would recommend getting two cheaper units from different manufacturers so you can check them against one another. You will spend about half of what it cost for the Apera. And as long as you occasionally test and re-calibrate them, you are better off with two cheaper models than the one more expensive one that does the same thing.
It’s extremely easy to calibrate and even easier to use than most other meters. Comes in a nice case too so I’m not constantly misplacing it like the others. Great product.
Top reviews from other countries
Preciso e affidabile.