--- product_id: 56650618 title: "APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration" price: "1086 Lei" currency: RON in_stock: true reviews_count: 8 url: https://www.desertcart.ro/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo store_origin: RO region: Romania --- # Fast response with low impedance sensor IP67 waterproof & dustproof durability Save 50% on buffer solutions with CalBox APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration **Price:** 1086 Lei **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your pH game with precision, speed, and smart savings! ## Quick Answers - **What is this?** APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - **How much does it cost?** 1086 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultimate Probe Care:** Includes cleaning brush and storage solution to extend probe life and maintain peak performance. - • **Precision Meets Speed:** Low impedance sensor delivers rapid, stable pH readings with ±0.1 accuracy—no more waiting around. - • **Built for Real-World Use:** IP67 waterproof design and 2000 hours battery life keep you measuring confidently anywhere, anytime. - • **Calibration Made Effortless:** Auto buffer recognition and temperature compensation ensure flawless accuracy from 32 to 122˚F every time. - • **Smart Organization, Big Savings:** Apera’s CalBox neatly stores calibration solutions, cutting buffer costs by at least 50%. ## Overview The APERA INSTRUMENTS AI209-T PH20 pH Tester Combo Kit is a top-rated, professional-grade pH meter featuring a fast low-impedance sensor, auto calibration with temperature compensation, and a comprehensive maintenance set including a cleaning brush and CalBox solution holder. Designed for diverse applications from hydroponics to brewing, it offers IP67 waterproof durability and up to 2000 hours of continuous use, making it the ultimate tool for accurate, reliable pH testing with cost-saving calibration management. ## Description "The top-rated pH tester on desertcart now comes with a complete calibration and probe care combo kit, including 3 bottles of 8oz pH calibration solutions (pH 7, 4 & 10), one 4oz 3M KCL storage solution, a probe cleaning brush, and Apera's unique CallBox for organizing all the solutions and efficient use of buffer solutions (help you save the cost on buffers by at least 50%). Performing pH calibration in fresh and clean calibration solutions regularly is critical to the reliable performance of pH meters. As a rule of thumb, we recommend calibrating your pH meter at least once a week. And each batch of calibration solutions should be replaced after 10-15 times of calibration. With Apera's Callbox and 8oz calibration solutions, users can perform up to 150 times of calibration. The probe cleaning brush that comes with the kit can help you easily remove contaminants on the glass bulb sensor without any damage, maximizing the life span of your pH probe.The PH20 Value pH Tester is designed for all kinds of regular water solutions pH test, including hydroponics, pools and spas, water treatment, aquariums, aquaculture, beer brewing, winemaking, cooling towers, 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 auto. indication of stable readings saves you the trouble of guessing when to manually hold measurement. With a clear large screen, it supports dual display of Temp./pH value and indicators of completed calibrations (where L/M/H indicate 3 points of calibrations) and stable readings (with a smiley face). Smart self-diagnosis, warning of out-of-range measurement and incorrect calibrations. IP67 waterproof and dustproof. Up to 2000 hours' continuous operation powered by AAA batteries (with low power warning and Auto power off in 8 min if no operation). 6-Month on the the probe. " Review: Great PH meter for liquids - read if you formulate creams - I use this meter for cosmetic formulation. It’s accurate for water-based solutions, but if testing viscous creams, conditioners, especially anything cationic (formulas with BTMS, CETAC, etc.): the meter will often freeze at pH 3.9 no matter what you do. This happens because the probe is being coated and losing contact with the sample. Solution: Always test a 1 : 10 dilution with distilled water. After use, rinse with water and soak 10 min in 1 : 1 vinegar + water and store in KCl solution. Calibrate once a week. Once you follow the steps, readings should be accurate. It’s a good tool, but requires some maintenance for creamy products. Without proper cleaning, it looks like every batch is pH 3.9 which might waste a lot of your time and calibration buffer solution troubleshooting. Review: works - these work well & will outlive 10 or more of the cheapo type. well worth the money. ## Features - The top-rated pH tester now comes with a complete CALIBRATION and PROBE CARE Combo Kit, ensuring reliable test performance - Comes with a probe cleaning brush for easy removal of contaminants on probes, maximizing probe's life-span - Comes with Apera's unique CalBox, heping you organize all the solutions and save cost on buffers by at least 50% - Apera quality pH sensor with low impedance, greatly improving response speed and shorteninb stablizing process - Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122˚F) ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 835 Reviews | ## Images ![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 1](https://m.media-amazon.com/images/I/612b36RUNML.jpg) ![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 2](https://m.media-amazon.com/images/I/61zM0X7STOL.jpg) ![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 3](https://m.media-amazon.com/images/I/51giCOPy+PS.jpg) ![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 4](https://m.media-amazon.com/images/I/61HfZO6a5kL.jpg) ![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 5](https://m.media-amazon.com/images/I/A1grEk4yLGL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: When calibrating, should i wait until the pen reaches the ph the solution should be before i go to the next step. or when the smiley face pops up?** A: Smiley face. That said, when taking readings, even in the calibration solution, remember to swirl the meter in the solution with some briskness. I found that my pH pen continues to walk down or walk up almost a half a PH point just from swirling it in the solution. **Q: So does this ph tester come pre calibrated? Thats what the user manual makes it sound like. I already have the 7 & 9 range just not 10.** A: The base pen comes with enough solution to last at least a year of biweekly checking/ calibrating. The full kit comes with big bottles of all 3 ph ranges and a storage solution. I havnt even had to open my large bottles. But I plan to next month just to exchange my small bottles (I've used for almost a year now) I have maybe had to calibrate 2 times and that was just to be safe. My water stays the same so I know what it is before and after my nutrient feeds so if it ever reads off, I just check it on a solution for the proper readout. **Q: Anybody had success using this for fermentation? I'm hoping to find one that's easy to use/store that I can use for fermenting hot sauces, etc.** A: I use mine specifically for Horticulture and I have zero experience in fermentation; that said, I believe this will still be a great tool for your purposes. **Q: Can this tester be used to test ph for medical / intravenous solutions? i am looking for something that is accurate to ~0.1ph. any experience?** A: It does measure to the tenth (0.0). The other Apera model PC60, measures to the hundredth (0.00). I use the PH20 and noticed when making changes to your solution, change down reads fairly quickly. Changes to raise PH reads more slowly, so give it a few minutes to stabilize the reading. Also I use the 7.0 calibration fluid in the cap when storing between uses. Helps notice if recalibration is needed. Always rinse and dry probe before storing or testing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great PH meter for liquids - read if you formulate creams *by M***A on October 18, 2025* I use this meter for cosmetic formulation. It’s accurate for water-based solutions, but if testing viscous creams, conditioners, especially anything cationic (formulas with BTMS, CETAC, etc.): the meter will often freeze at pH 3.9 no matter what you do. This happens because the probe is being coated and losing contact with the sample. Solution: Always test a 1 : 10 dilution with distilled water. After use, rinse with water and soak 10 min in 1 : 1 vinegar + water and store in KCl solution. Calibrate once a week. Once you follow the steps, readings should be accurate. It’s a good tool, but requires some maintenance for creamy products. Without proper cleaning, it looks like every batch is pH 3.9 which might waste a lot of your time and calibration buffer solution troubleshooting. ### ⭐⭐⭐⭐⭐ works *by J***R on November 27, 2025* these work well & will outlive 10 or more of the cheapo type. well worth the money. ### ⭐⭐⭐⭐⭐ Easy to use!! *by B***1 on April 30, 2025* First time user... Love this kit!! Highly recommend!! Fast, simple & accurate 3 points calibration. Excellent video links on the Amazon site & printed direction in the case to help your step right through the he process of calibration and use. 😎 ## Frequently Bought Together - APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - 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. Calibration --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo](https://www.desertcart.ro/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-04-22*