--- product_id: 670313284 title: "UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool" brand: "uiuzmar" price: "$141.64" currency: USD in_stock: true reviews_count: 13 category: "Uiuzmar" url: https://www.desertcart.ec/products/670313284-uiuzmar-water-ph-tds-meter-pen-ph-ec-meter-hydroponic store_origin: EC region: Ecuador --- # Wide EC range 0~9990μS/cm & 10.01~19.99mS/cm Backlit digital display for any lighting 4-in-1 multi-parameter testing UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool **Brand:** uiuzmar **Price:** $141.64 **Availability:** ✅ In Stock ## Summary > 💧 Master your water quality like a pro—because your ecosystem deserves the best. ## Quick Answers - **What is this?** UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool by uiuzmar - **How much does it cost?** $141.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/670313284-uiuzmar-water-ph-tds-meter-pen-ph-ec-meter-hydroponic) ## Best For - uiuzmar enthusiasts ## Why This Product - Trusted uiuzmar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Precision:** Measure pH, TDS, EC, and temperature with one sleek pen—no more juggling multiple devices. - • **Plug & Play Convenience:** Pre-calibrated and ready out of the box with easy mode switching and included calibration powders for long-term reliability. - • **Instant Digital Accuracy:** Forget color strips—get precise readings with ±0.1 pH accuracy and automatic temperature compensation. - • **Hydroponic & Aquarium Ready:** Optimized for hydroponics and aquatic environments, ensuring your plants and fish thrive with perfect water balance. - • **Versatile Water Quality Control:** Ideal for pools, hot tubs, drinking water, ponds, and more—stay ahead in water care and impress your eco-conscious peers. ## Overview The UIUZMAR 4-in-1 pH TDS EC Temp Meter Pen delivers professional-grade water testing for aquariums, hydroponics, pools, and drinking water. Featuring a wide EC measurement range, digital backlit display, and automatic temperature compensation, it offers precise, instant readings of pH, TDS, EC, and temperature. Pre-calibrated and user-friendly, this compact device is essential for anyone serious about maintaining optimal water quality across multiple environments. ## Description Product Description UIUZMAR 4 in 1 pH TDS EC Temp Meter The UIUZMAR 4-in-1 hydroponic tester uses newly upgraded electrodes to provides stable and accurate values. Just put the probe into the water to measure the four parameters of pH, TDS, EC and TEMP, fully meeting the needs of aquarium, pool, drinking water, indoor garden water nutrient monitoring. Professional pH TDS Tester for Aquaqriums Measure the TDS pH level of freshwater aquarium or home fish tank water; help aquarium keepers and aquarium enthusiasts know when to change the water in fish tanks. In addition, pH meter also used for Koi fish ponds, pond water. pH Meter for Swimming Pool The ideal pH value of a swimming pool is 7.2-7.8pH. Regularly measuring pH values, pH meter ​​is also a good helper for swimming pool owners to make the swimming pool cleaner. In addition, pH tester also suitable for hot tubs, spas. UIUZMAR Digital pH TDS EC Meter for Hydroponic If you need a testing tool when making hydroponic nutrient solution at home, then UIUZMAR pH EC PPM meter is undoubtedly your best choice. With pH EC PPM Temp 4 in 1 function, simple calibration and easy operation, perfect for hydroponic setup, DWC, aeroponic, indoor gardening, aquaponics. Multifunctional TDS Meter for Hydroponic Water The most important ingredient in hydroponics is water, and monitoring of hydroponics TDS values with UIUZMAR TDS meter keeps a clean nutrient that helps the plant grow to its maximum potential. Ideal for testing filtered water, well water, RO/DI water, aquarium, drinking water, pond water, etc. UIUZMAR Another Multi-Parameter Tester you Might Like 2025 New 4 in 1 pH Meter pH Calibration Solution 500ml pH 4.0+7.0 Dissolved Oxygen Tester 7 in 1 pH Chlorine Meter Truncheon EC CF TDS Meter Review: Lovely quality, works perfectly - Works great - I use it for in field testing of water sources to identify ph levels as potential causes of peripheral tooth decay in equids. This is probably the best one I’ve had so far - and way, way better than paper strips Review: Good product - Works straight out the box easy to maintain ## Features - Aquarium pH TDS Meter: UIUZMAR pH tds tester can measure the TDS pH level of freshwater aquarium or home fish tank water; help aquarium keepers and aquarium enthusiasts know when to change the water in fish tanks. In addition, TDS pH Meter Digital Water Tester also can test the pond water, filtered water, drinking water, bottled water, koi pond, well water, and is a good helper for pond managers and koi breeder to detect ppm level. - Hydroponic pH EC Tester: UIUZMAR 4 in 1 pH ec meter can measure the pH value and the conductivity of the hydroponic nutrient solution, so that hydroponic enthusiasts can clearly know the pH level (generally between 5.3~6.5) and the ec concentration of the hydroponic nutrient solution. Supports different measurement units of μS/cm, ppm; With a wide EC measurement range 0~9990μS/cm, 10.01~19.99mS/cm, which can meet the needs of different hydroponic growing systems (DWC, Aeroponics, NFT). - Accurate pH TDS Water Tester: Compared with traditional pH test strips, UIUZMAR pH ppm Digital tester does not need to be repeatedly compared with color strips. pH Meter with digital backlights screen display, which can read clearly in any dark environment. Use is simple, just put the probe into the liquid and can read the pH tds results. In addition, pH Tester also has an automatic temperature compensation function, and temperature changes will not affect the accuracy of the test results. - 4 in 1 Tester that can be Used Out of the Box: EC/TDS/pH are pre-calibrated and ready to use out of the box. UIUZMAR TDS and pH meter comes with 2 sets of pH calibration powder packs for subsequent pH calibration. Simple function conversion, just press the MODE/CAL button to switch the pH/tds/ec measurement mode at will. - Widely Used 4 in 1 Water Quality Tester Kit: No need to do separate test, just one UIUZMAR 4 in 1 pH pen tds tester can measure pH/tds/ec/temp. And UIUZMAR liquid pH meter for has a wide range of applications, suitable for aquarium, koi pond water, fish tank, hydroponic set up, hot tub, swimming pool, spa, homebrew beer, drinking water, bottled water, coffee, kombucha, vinegar, filtered water, well water, RO water ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CN9CLZWJ | | Batteries | 4 LR44 batteries required. (included) | | Batteries Required? | Yes | | Batteries included? | Yes | | Battery Cell Type | Alkaline | | Best Sellers Rank | 37,695 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 54 in Lab pH Meters | | Colour | Red 4 in 1 pH Meter | | Customer Reviews | 4.3 4.3 out of 5 stars (963) | | Date First Available | 25 May 2024 | | Included components | ph meter | | Item Package Quantity | 1 | | Item Weight | 220 g | | Item model number | UMR-PH08 | | Manufacturer | Jinan Runjie Electronic Technology co., Ltd. | | Measurement Accuracy | pH: +/-0.1pH | | Part number | UMR-PH08 | | Product Dimensions | 22 x 9 x 5 cm; 220 g | | Style | 4 in 1-pH,TDS,EC | ## Images ![UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool - Image 1](https://m.media-amazon.com/images/I/51QeI8nFrRL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Lovely quality, works perfectly *by C***N on 9 December 2025* Works great - I use it for in field testing of water sources to identify ph levels as potential causes of peripheral tooth decay in equids. This is probably the best one I’ve had so far - and way, way better than paper strips ### ⭐⭐⭐⭐⭐ Good product *by M***K on 31 December 2025* Works straight out the box easy to maintain ### ⭐⭐⭐⭐ Ph probe *by A***N on 30 January 2026* Very good ## Frequently Bought Together - UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic - General Hydroponics pH Control Kit For A Balanced Nutrient Solution - UIUZMAR pH Calibration Solution pH7.00/4.00/10.01 50 mL Each, with pH Probe Storage Solution 2 Bottels 10mL Each, pH Calibration Buffer Solution and pH Electrode Solution for pH Meter --- ## 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.ec/products/670313284-uiuzmar-water-ph-tds-meter-pen-ph-ec-meter-hydroponic](https://www.desertcart.ec/products/670313284-uiuzmar-water-ph-tds-meter-pen-ph-ec-meter-hydroponic) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-07-05*