--- product_id: 34756289 title: "PH20 Regular Kit" brand: "apera instruments" price: "691413Fr" currency: CDF in_stock: true reviews_count: 13 category: "Apera Instruments" url: https://congo.desertcart.com/products/34756289-ph20-regular-kit store_origin: CD region: Congo --- # IP67 Waterproof rugged design 2000 hours battery life 5-second rapid response time PH20 Regular Kit **Brand:** apera instruments **Price:** 691413Fr **Availability:** ✅ In Stock ## Summary > 💧 Stay sharp, stay ahead—pH testing made flawless and fuss-free. ## Quick Answers - **What is this?** PH20 Regular Kit by apera instruments - **How much does it cost?** 691413Fr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [congo.desertcart.com](https://congo.desertcart.com/products/34756289-ph20-regular-kit) ## Best For - apera instruments enthusiasts ## Why This Product - Trusted apera instruments brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Up to 2000 hours of continuous use powered by included AAA batteries—stay testing without interruption. - • **Built for the Field:** IP67 waterproof rating and rugged carrying case keep your tester safe in any environment. - • **Effortless Calibration:** Auto buffer recognition and 3-point calibration make setup a breeze—no guesswork needed. - • **Precision that Pays Off:** ±0.1 pH accuracy with auto temperature compensation ensures spot-on readings every time. - • **Smart Stability Detection:** Auto recognition of stable values means consistent, reliable results without manual holding. ## Overview The APERA INSTRUMENTS AI209 PH20 is a professional-grade, waterproof pH tester kit delivering ±0.1 accuracy with fast 5-second readings. Featuring auto temperature compensation, auto buffer recognition, and stable value detection, it ensures reliable, repeatable measurements across a wide temperature range. Packaged in a rugged case with calibration buffers and powered by AAA batteries offering up to 2000 hours of use, this CE and ISO-certified device is ideal for hydroponics, water treatment, and environmental monitoring. ## 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. Review: Highly recommend - Just as good as bluelab half the price. Very reliable and stable and easy to use. pH is on point Review: Best bang for your buck. - I love this ph pen with just a few complaints . Seems to be the most accurate I have used . This is my third one. I also just purchased the ac infinity ph pen which I swear is made by the same company but it has a replacement head. But it’s always a point and a half off compared to my two aperas that I double check everything with. So I’ll probably be contacting them to see what’s going on or taking it as a loss and sticking with these. For the quality you get I feel like price is fair . Just bought the tds too so I’ll be checking it out over the next few weeks. Be careful the glass bulb is very thin and easy to break when cleaning. My fault though. I was using the wrong thing to clean with and now I use old nylon paintbrush’s for watercolor and those stiffer bristles seem to clean very well. ## Features - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01ENFOHN8 | | Additional Features | Waterproof | | Age Range (Description) | Adult | | Age Range Description | Adult | | Battery Life | 2000 hours | | Best Sellers Rank | #3,008 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Lab pH Meters | | Brand | Apera Instruments | | Brand Name | Apera Instruments | | Color | Regular Kit | | Customer Reviews | 4.4 out of 5 stars 8,866 Reviews | | Display Type | Digital | | Global Trade Identification Number | 00858718006339 | | Included Components | PH20 Value pH tester kit | | Indoor Outdoor Usage | Outdoor | | Item Length | 21.8 centimeters | | Item Weight | 3.9 ounces | | LowerTemperature Range | 32 °F | | Manufacturer | Apera Instruments | | Model | AI209 | | Model Name | PH20 | | Number of Batteries | 4 AAA batteries required. (included) | | Outer Material | Plastic | | Part Number | AI209 | | Power Source | Battery Powered | | Product Care Instructions | Hand Wash Only | | Response Time | 5 seconds | | Reusability | Reusable | | Special Feature | Waterproof | | Specification Met | CE, ISO 9001, RoHS | | Style Name | Regular Kit | | UPC | 858718006339 | | Unit Count | 1 Count | | Upper Temperature Range | 50 °C | | Warranty Description | Two-Year limited warranty for the instrument, Six-Month limited warranty for the electrode(s). | ## Product Details - **Age Range (Description):** Adult - **Brand:** Apera Instruments - **Color:** Regular Kit - **Display Type:** Digital - **Included Components:** PH20 Value pH tester kit - **Outer Material:** Plastic - **Product Care Instructions:** Hand Wash Only - **Special Feature:** Waterproof - **Specification Met:** CE, ISO 9001, RoHS - **Unit Count:** 1 Count ## Images ![PH20 Regular Kit - Image 1](https://m.media-amazon.com/images/I/71ewDi82t5L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: How often does this pH meter need to be re-calibrated and/or how can I tell when it needs to be re-calibrated?** A: The manufacturer recommends keeping the device probe in a neutral storage solution; the protective tip case/container actually has a 'fill' line for guidance, and it is designed to hold a liquid safely when stored as indicated -- If someone uses distilled or deionized water by itself as a storage solution, the salts contained in the probe tip will dissipate and the probe will then need to be replaced--about $25, plus a fine headache trying to get it right. If you are out of storage solution keeping the probe wet somehow is better than dry--but don't store without the specialized solution for more than a day or so; these are typically $10-$13 for 100ml - 250ml size bottles on Amazon. **Q: Can anyone confirm if this comes pre calibrated?** A: Mine was, the PH20 unit. Dead on, but I still did the cal to know how. If you use it for pH 8.0 or lower, the 4.00 and 7.00 solutions are perfect-no need for 10.00 test buffer solution. I am AMAZED at how bad my cheapy meters are, and how they disagree with each other and this one. **Q: Can this be used to analyze urine?** A: Yes, it can tests urine with no problem. You can use the probe cap as a container for the urine. **Q: I will be using this meter once a month. Do I need storage solution for the probe?** A: Storing the probe in the storage solution helps keep the probe's sensitivity and accuracy. So it's a recommended practice. While storing the probe without any solution will not damage the probe, it's just going to cause the probe to lose its sensitivity and accuracy temporarily. Store the probe in the storage solution again for about 10 minutes, the sensitivity and accuracy can be restored. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Highly recommend *by T***D on August 15, 2026* Just as good as bluelab half the price. Very reliable and stable and easy to use. pH is on point ### ⭐⭐⭐⭐⭐ Best bang for your buck. *by J***N on August 15, 2026* I love this ph pen with just a few complaints . Seems to be the most accurate I have used . This is my third one. I also just purchased the ac infinity ph pen which I swear is made by the same company but it has a replacement head. But it’s always a point and a half off compared to my two aperas that I double check everything with. So I’ll probably be contacting them to see what’s going on or taking it as a loss and sticking with these. For the quality you get I feel like price is fair . Just bought the tds too so I’ll be checking it out over the next few weeks. Be careful the glass bulb is very thin and easy to break when cleaning. My fault though. I was using the wrong thing to clean with and now I use old nylon paintbrush’s for watercolor and those stiffer bristles seem to clean very well. ### ⭐⭐⭐⭐⭐ Love ir *by N***O on July 29, 2026* “I’m really happy with this purchase! The quality is better than I expected, it arrived quickly, and it works exactly as described. It was easy to use right out of the box, and you can tell it’s well made. I would definitely recommend it to anyone looking for something reliable. Great value for the price!” ## Frequently Bought Together - APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy - General Hydroponics pH Control Kit For A Balanced Nutrient Solution - Apera Instruments AI213 Value Series TDS20 Waterproof TDS Pocket Tester kit, Accuracy: ±1% F.S, 2-Point Auto. 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