--- product_id: 40679482 title: "VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking" brand: "vivosun" price: "3169 som" currency: KGS in_stock: true reviews_count: 13 category: "Vivosun" url: https://www.desertcart.kg/products/40679482-vivosun-digital-ph-meter-0-01-accuracy-pen-tester-water store_origin: KG region: Kyrgyzstan --- # Backlit LCD for clear readings ±0.01 pH ultra-precise accuracy ATC auto temp compensation VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking **Brand:** vivosun **Price:** 3169 som **Availability:** ✅ In Stock ## Summary > 📊 Nail your pH game with precision and ease—because your water deserves the best! ## Quick Answers - **What is this?** VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking by vivosun - **How much does it cost?** 3169 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/40679482-vivosun-digital-ph-meter-0-01-accuracy-pen-tester-water) ## Best For - vivosun enthusiasts ## Why This Product - Trusted vivosun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Calibration:** Advanced auto-calibration technology makes setup quick and foolproof—no guesswork needed. - • **Compact & On-the-Go Ready:** Pocket-sized, lightweight design with backlit display keeps you measuring anytime, anywhere. - • **Smart Temperature Adaptation:** Automatic Temperature Compensation (ATC) ensures instant, reliable pH readings regardless of water temp. - • **Complete Kit for Immediate Use:** Includes batteries, user manual, and 3 buffer powders—everything you need to start testing right away. - • **Precision that Professionals Trust:** Experience lab-grade ±0.01 pH accuracy for flawless water quality control. ## Overview The VIVOSUN Digital pH Meter delivers professional-grade ±0.01 accuracy with automatic temperature compensation and easy auto-calibration. Its compact, lightweight design features a backlit LCD for clear readings in any environment. Ideal for hydroponics, aquariums, pools, and labs, it comes complete with batteries and calibration powders for immediate, reliable water quality testing. ## Description VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking: desertcart.com: Industrial & Scientific Review: Inexpensive, but good PH meter. - This is the second of these PH meters I've purchased. There are a number of negative reviews, so I was a little concerned but went ahead and order one. The first meter calibrated easily and (apparently) accurately. I used the three point calibration, then tested my fish tanks and compared the reading to the drop type ph test kit I had been using. It was spot on as close as I could tell with the test kit. I used the meter for a week, every day on several tanks as I changed the ph. It tracked these changes as I would have expected it to. It worked very well for me so I ordered a second PH meter. (I have fish tanks in two locations.) I then used these two meters side by side. They vary from each other by 0.10 points. The second meter did not calibrate as easily as the first, and the calibration was off slightly. I will try recalibrating, but it's as accurate as I need now. I'm very satisficed with them and would recommend. Review: Meter Accuracte down to One tenth - Although it may be a little delicate to calibrate upon first time using. Insure solution temperature is ~75 degrees F. Measure out 250 ml distilled water. Insert the meter into a cup pour into another cup until you reach the line on the meter. Turn meter on holding down the calibrate button for 5 seconds then release. Press Cal button one more time. I did not get a display showing "cal" like some of the YT videos. This generates confidence in the meter concerns. However, I had a lab tech at the university check the calibration in a buffer solution of 7.0 and the meter showed 6.97. First pH meter that works and provides accurate results. ## Features - Application: Ideal for residential or commercial use, water, pool, spas, liquid food, laboratory, aquaculture and hydroponics - Easy Calibration: Advanced technology makes the test result fast and accurate; LCD screen makes reading clearly - Features: Pocket size, lightweight, backlit function, high quality - ATC Function: With Automatic Temperature Compensation (ATC), adjust to water temperature and give pH reading almost instantly - What You Get: pH meter, user manual, 2 x 1.5V button cells (built in), 3 x pH buffer powders ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01M5IASHD | | Best Sellers Rank | #2,577 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab pH Meters | | Brand | VIVOSUN | | Brand Name | VIVOSUN | | Customer Reviews | 3.8 out of 5 stars 8,845 Reviews | | Included Components | Batteries included | | Item Highlight | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking Item Highlight ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking See more | | Manufacturer | VIVOSUN | | Material Type | ABS | | Model Number | 4316344538 | | Number of Items | 1 | | Part Number | 4316344538 | | Ph Range | 0.00-14.00 | | Sterility Rating | 0.00-14.00 | | UPC | 714119465581 | | Unit Count | 1 Count | ## Product Details - **Brand:** VIVOSUN - **Manufacturer:** VIVOSUN - **Ph Range:** 0.00-14.00 - **UPC:** 714119465581 - **Unit Count:** 1 Count ## Images ![VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics | ±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking - Image 1](https://m.media-amazon.com/images/I/51oVdDBZlWL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What do you use to clean electrode?** A: Instructions say to use distilled water to clean electrodes **Q: Would this be a good tool for an aquarium?** A: Sure it will read the Ph for your tank **Q: Does it work well for testing ph in a saltwater pool?** A: I don’t know anything about testing pool water but it will definitely give you the ph between 4.0-10 **Q: My pen has gone way out of calibration. Is there a way to calibrate it against an accurate test kit? I.e. just set the pH?** A: I second the answer but Alix. I thought it could be recalibrated against the standards they provide and I would be back to using the ph tool. Once it started to give me bogus readings I knew I had a new paper weight. I even bought 7.0 fluid so I could check it before each use so I knew the readings were correct. I have extensive experience calibrating thousands of gauges in a railroad machine shop to NIST and audited by the ARR annually. Knowing I have a good accurate tool is important to me. The quality of this tool is below the mark. I am surprised as I own VIVOSUN products that are more reliable so I thought I would give it a chance. It lasted almost a year for me. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Inexpensive, but good PH meter. *by L***K on April 12, 2024* This is the second of these PH meters I've purchased. There are a number of negative reviews, so I was a little concerned but went ahead and order one. The first meter calibrated easily and (apparently) accurately. I used the three point calibration, then tested my fish tanks and compared the reading to the drop type ph test kit I had been using. It was spot on as close as I could tell with the test kit. I used the meter for a week, every day on several tanks as I changed the ph. It tracked these changes as I would have expected it to. It worked very well for me so I ordered a second PH meter. (I have fish tanks in two locations.) I then used these two meters side by side. They vary from each other by 0.10 points. The second meter did not calibrate as easily as the first, and the calibration was off slightly. I will try recalibrating, but it's as accurate as I need now. I'm very satisficed with them and would recommend. ### ⭐⭐⭐⭐⭐ Meter Accuracte down to One tenth *by H***I on May 1, 2026* Although it may be a little delicate to calibrate upon first time using. Insure solution temperature is ~75 degrees F. Measure out 250 ml distilled water. Insert the meter into a cup pour into another cup until you reach the line on the meter. Turn meter on holding down the calibrate button for 5 seconds then release. Press Cal button one more time. I did not get a display showing "cal" like some of the YT videos. This generates confidence in the meter concerns. However, I had a lab tech at the university check the calibration in a buffer solution of 7.0 and the meter showed 6.97. First pH meter that works and provides accurate results. ### ⭐ Garbage *by T***6 on March 6, 2022* First one arrived and it worked for about 2-3 days and then the screen started displaying nothing but wacky symbols even after leaving it off for a long time. Got an exchange from the seller and the new one seemed to work fine but started giving questionable readings. I set this device aside for a while and just returned to test it and tested it numerous times on multiple water sources. Water is supposed to be a pH of 7. It started at 8 and then slowly and continuously just kept creeping downward until several minutes later finally setting on around 4.7 each time. That's absurd. That's somewhere between a tomato and black coffee. And no, I don't live in Flint, MI. There's nothing wrong with the tap OR bottled water I tested it with. Additionally, I noticed that the device they sent me as the exchange had an LPN label on it - which for those who aren't aware is a label indicating that an item was a pull back or return. Amazon puts these on items that get sent back so that they specifically are not to be sold again. Amazon usually covers the UPC or other barcode for this exact reason. I did notice it when it arrived but it seemed like it was brand new so could have been an overstock return from their FBA warehouse at some point. But they sent me an item that Amazon specifically would NOT allow to be sold/resold on it's own website. ## Frequently Bought Together - VIVOSUN Digital pH Meter, 0.01pH High Accuracy Pen Type pH Tester for Hydroponics, Household Drinking, Pool and Aquarium, UL Certified - General Hydroponics pH Control Kit For A Balanced Nutrient Solution - VIVOSUN 18-Pack pH Meter Buffer Solution Powder, pH 6.86/4.00/9.18, pH Buffer Powder for Precise and Easy pH Tester 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.kg/products/40679482-vivosun-digital-ph-meter-0-01-accuracy-pen-tester-water](https://www.desertcart.kg/products/40679482-vivosun-digital-ph-meter-0-01-accuracy-pen-tester-water) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-08-21*