--- product_id: 142266636 title: "pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included" brand: "ketotek" price: "€ 33.78" currency: EUR in_stock: true reviews_count: 13 category: "Ketotek" url: https://www.desertcart.gr/products/142266636-ph-meter-digital-water-quality-ph-tester-pen-with-calibration store_origin: GR region: Greece --- # 0.01 pH resolution Batteries included, portable ±0.01 pH accuracy pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included **Brand:** ketotek **Price:** € 33.78 **Availability:** ✅ In Stock ## Summary > 🔬 Stay ahead with precision pH insights—because your water deserves the best! ## Quick Answers - **What is this?** pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included by ketotek - **How much does it cost?** € 33.78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/142266636-ph-meter-digital-water-quality-ph-tester-pen-with-calibration) ## Best For - ketotek enthusiasts ## Why This Product - Trusted ketotek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Calibration:** Automatic two-point calibration in just 5 seconds keeps your readings flawless. - • **Anywhere, Anytime Testing:** Compact, lightweight design with included batteries means pH monitoring on the go. - • **Precision at Your Fingertips:** Ultra-fine 0.01 pH resolution ensures lab-grade accuracy for every test. - • **Temperature-Smart Measurements:** Built-in ATC compensates for temperature variations, delivering reliable results fast. - • **Versatile for Every Environment:** Perfect for hydroponics, aquariums, pools, brewing, and more—join the smart testers' club. ## Overview The KETOTEK Digital pH Meter is a portable, high-precision tester with 0.01 pH resolution and ±0.01 accuracy. Featuring automatic two-point calibration and ATC temperature compensation, it delivers fast, reliable pH readings across a wide 0-14 pH range. Ideal for professionals managing hydroponics, aquariums, pools, brewing, and environmental monitoring, it comes complete with calibration solutions and batteries for immediate use. ## Description Product Description This digital pH meter features portable design, simple operation and high precision, can detect the pH value of liquids anytime, anywhere, widely used for aquarium, brewing, pool, cosmetic, aquaculture, drinking water, food, industrial wastewater, laboratory and other areas. Specification Measure range: 0.00- 14.00PH Accuracy: ±0.01 PH Resolution: 0.01pH Package: 1*pH meter, 2*calibration solution (pH4.01, pH6.86), 2*1.5V LR44 batteries(including, installed),1*User Manual (English). Two-point Automatic Calibration 1. Prepare calibration solution Dissolve each buffer solution in 250 ml of distilled water 2. pH 6.86 calibration Immerse the electrode into the pH 6.86 solution.(under 25 C). Press the "CAL" button for 3 seconds and release Display will start flashing 6.86 Wait until the display stops flashing. 3. Rinse the electrode Rinse the electrode with distilled water and dry it with filter paper. 4. pH 4.01 calibration Immerse the electrode in pH4.01 solution Press "CAL" button for 3 seconds, then press andrelease immediately second time. Reading will start flashing 4.01. Wait until display stops flashing. Rinse and dry the electrode with distilled water as before. Easy to use 1 Remove the electrode protection cap. First rinse the electrode with distilled water. Dry with filter paper. 2 Press the ON/OFF button, and immerse the meter into the solution. (the solution should not over the immersion line.) 3 Stir gently and wait around 30 seconds until the display value is stable. You will get the right pH value. 4 Clean the electrode with pure water , turn off the meter and cover the protection cap. Review: pH tester - Good quality pH metre. Calibrated and works fine Review: Stop working after four weeks - Worked brilliantly for a month, using twice a week. Then battery died and when I changed them, the digital reader no longer works. ## Features - Easy to use,portable design with high precision. This digital pH meter is suitable for testing PH value of drinking water, pool, aquariums, spas, hydroponics, food, wine, brewing, milk, environmental protection and other solutions for pH value monitoring. - Automatic two-point calibration (pH4.01, pH6.86). Put this portable pH tester in the calibration solution, and press the "CAL" button to automatically identify the calibration solution, and complete the calibration in 5 seconds. The calibration procedure is very simple. - Large LCD display makes the reading more clear and easier, stable the value in 4-5 seconds. This pH water meter is economical and suitable for various industries which need pH testing. - ATC Automatic Temperature Compensation. The temperature sensor directly contacts the measured liquid, and can be converted and corrected by itself to reduce errors caused by temperature differences, making the measure results more accurate and faster. - Measure range: 0.00-14.00pH, Resolution: 0.01pH, Accuracy:¡À0.01pH, Package: 1*pH meter, 2*calibration solution (pH4.01, pH6.86), 2*1.5V LR44 batteries(including, installed),1*User Manual (English). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07STVLYNF | | Batteries | 2 LR44 batteries required. (included) | | Best Sellers Rank | 22,406 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 34 in Lab pH Meters | | Customer Reviews | 3.8 3.8 out of 5 stars (210) | | Date First Available | 29 Mar. 2019 | | Item model number | KT-3 | | Manufacturer | KETOTEK | | Material type | PLA_(Polylactic_Acid), PE_(Polyethylene) | | Package Dimensions | 16.4 x 6 x 3 cm; 120 g | | Part number | KT-3 | ## Images ![pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Image 1](https://m.media-amazon.com/images/I/51RZCa8bZ3L.jpg) ![pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Image 2](https://m.media-amazon.com/images/I/51Z4t3+6wkL.jpg) ![pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Image 3](https://m.media-amazon.com/images/I/61giuD5sxZL.jpg) ![pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Image 4](https://m.media-amazon.com/images/I/418lAQNyKUL.jpg) ![pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Image 5](https://m.media-amazon.com/images/I/51rxSZPXTuL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ pH tester *by A***P on 14 June 2025* Good quality pH metre. Calibrated and works fine ### ⭐ Stop working after four weeks *by N***Y on 2 April 2023* Worked brilliantly for a month, using twice a week. Then battery died and when I changed them, the digital reader no longer works. ### ⭐⭐⭐⭐⭐ very easy to use *by D***S on 24 December 2022* easy to use, I haven't checked accuracy yet but it's definitely value for the money ## Frequently Bought Together - KETOTEK pH Meter Digital Water Quality pH Tester Pen with Calibration Solution 0-14pH Portable Water pH Test Kit for Hydroponics Fish Tank Batteries Included - Reductor/Bajador de pH Down para cultivo BioBizz Bio-pH- (250ml) - BOJACK 15 Pack of pH Meter Buffer Solution Powder for Precise and Easy PH Calibration, PH Calibration Powder Solution 4.01pH,6.86pH and 9.18pH --- ## 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.gr/products/142266636-ph-meter-digital-water-quality-ph-tester-pen-with-calibration](https://www.desertcart.gr/products/142266636-ph-meter-digital-water-quality-ph-tester-pen-with-calibration) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-16*