Most Accurate So Far 4-in-1 Instant Read TDS Meter – Measures TDS, EC, & Temperature (°C/°F) – Digital Water Testing Kit for Tap, Well, Pool, Hydroponics, Aquarium, RO/DI System White
Original price was: $5.99.$3.99Current price is: $3.99.
Price: $5.99 - $3.99
(as of Nov 05, 2025 08:24:50 UTC – Details)
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NJTY Product Overview
NJTY Product Overview
Product Dimensions : 3 x 1.2 x 0.5 inches; 2.89 ounces
Item model number : tds-A5-white
Date First Available : August 1, 2024
Manufacturer : NJTY
ASIN : B0DBLGPY58
Best Sellers Rank: #17,425 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Lab Turbidity Meters
Customer Reviews: 4.3 4.3 out of 5 stars 477 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Trusted Expertise: With over 20 years of experience in the measurement industry, NJTY is committed to the belief that clean and safe drinking water is a basic human right. Our turbidity and TDS digital water quality tester is designed to help achieve this goal with professional accuracy. We are dedicated to providing top-quality products and outstanding customer support
2024 Latest Debut: The NJTY water quality tester features an upgraded high-sensitivity titanium alloy probe and a high-precision chip, significantly enhancing real-time data accuracy and ensuring precise measurements across various water types. Additionally, it detects water quality 20% faster compared to other models, providing quick and reliable results
Water Tester for Drinking Water – Main Functions: This device integrates TDS, EC, and temperature (℉ & ℃) measurements into one comprehensive and affordable water test kit. Additionally, to enhance visual accessibility, we have enlarged the screen by 25% and added a backlight function
User-Friendly Design: NJTY has added a hold function and a 5-minute automatic shutdown feature to the home water test kit, addressing issues like fluctuating data and forgotten shutdown. These enhancements make the device more convenient for all users, including the elderly and children
Comprehensive Guarantee: NJTY ppm meter offers lifelong after-sales service to all customers. Should you need any assistance, simply reach out to NJTY. We are committed to resolving your issues in the quickest and most efficient manner possible (please refer to the user manual for detailed after-sales information)
Transform Your Water, Transform Your Life: Enjoy the purity and health benefits of clean water with your family, thanks to the NJTY 2024 all-new 4-in-1 TDS meter digital water tester!
Customers say
Customers find the TDS meter accurate and easy to use, with one mentioning it works well against multiple water samples. They appreciate its quality, value for money, and effectiveness in measuring water quality, with one noting its multi-parameter analysis capabilities. The display’s brightness receives positive feedback, while durability opinions are mixed.
8 reviews for Most Accurate So Far 4-in-1 Instant Read TDS Meter – Measures TDS, EC, & Temperature (°C/°F) – Digital Water Testing Kit for Tap, Well, Pool, Hydroponics, Aquarium, RO/DI System White
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Original price was: $5.99.$3.99Current price is: $3.99.
José Roberto –
Detailed Technical Appraisal of the âMost Accurate So Farâ 4-in-1 Water Testing Meter
The Most Accurate So Far 4-in-1 Instant Read TDS Meter constitutes a remarkably sophisticated diagnostic instrument, meticulously engineered to deliver multi-parameter water analysis with unparalleled precision and consistency. By consolidating the measurement of Total Dissolved Solids (TDS), Electrical Conductivity (EC) and temperature (in both Celsius and Fahrenheit scales), this apparatus exemplifies the apex of portable digital hydro-analytical technology.At its core, the device integrates a high-sensitivity multi-electrode sensor array coupled with a micro-calibrated analogue-to-digital conversion system, ensuring the utmost fidelity in electrochemical data acquisition. Each measurement is subjected to an internal correction matrix designed to neutralise extraneous environmental influences, thereby achieving a level of accuracy that verges upon laboratory-grade instrumentation.The TDS function, derived through a calibrated conductivity-to-solid conversion algorithm, provides a precise quantification of ionic and non-ionic solute concentration, offering immediate interpretative insight into the overall purity and mineral composition of the tested solution. Its EC measurement, rendered in microsiemens per centimetre (µS/cm), facilitates an exact determination of ionic mobilityâan essential diagnostic parameter in applications ranging from hydroponic nutrient optimisation to industrial process water conditioning.Complementing these analytical capabilities is the deviceâs dual-mode thermal sensor, which not only displays temperature in °C and °F but also underpins the unitâs Automatic Temperature Compensation (ATC) system. This feature dynamically adjusts conductivity readings in accordance with thermal fluctuations, ensuring data uniformity even under variable ambient conditionsâa hallmark of professional-grade metrology.From an ergonomic perspective, the instrumentâs sleek white polymer chassis exhibits both aesthetic restraint and structural resilience. Its high-definition liquid-crystal interface provides exceptional legibility, with rapid parameter switching and digital stability that preclude measurement lag or drift. The tactile response of its controls has been fine-tuned for effortless operation, reinforcing its suitability for fieldwork as well as bench-top analytical environments.The overall construction reflects a meticulous attention to design symbiosis: precision, durability, and intuitive usability coalesce into a single artefact of engineering excellence. Whether employed for domestic tap water verification, well and borehole monitoring, aquarium equilibrium analysis, or reverse osmosis/deionisation (RO/DI) system calibration, the instrument demonstrates consistent analytical integrity and operational reliability.In summation, the Most Accurate So Far 4-in-1 Instant Read TDS Meter is far more than a consumer testing gadgetâit is a compact scientific instrument, conceived for practitioners and enthusiasts who regard analytical accuracy not as a luxury, but as a standard. Its design philosophy fuses empirical rigour with digital elegance, situating it among the most refined examples of modern portable water-quality metrology.
Amazon Customer –
Good meter.
Great price for a good working TFS meter. Have only used it a couple times, but so far, so good.
thomas12789 –
Nice little device to have.
Nice little water tester for the money. Great to see where your tapwater stands in level of purity. Also, good to know that the bottle watered. Iâve been drinking from Walmart has a very high purity level. Also great to use on your refrigerator filter to see if the water is actually being filtered or not or if you need to get a new filter.
stone –
works but small issue
It’s cheap and works,But there are small issues, I am not sure if it is by design or on purpose.It only works if I take off the back cap. If I push in the battery will not turn on, and no power at all.
William A Jones –
Accurate
I almost returned because I bought the two pack and they weren’t working. I finally figured out that I had to go to the battery and pull a plastic tab. Don’t return – find the plastic tab under the battery and remove. Seems accurate.
Bun MOM –
Used products , do not buy
The item arrived without any packaging and looks used. I tried inserting a new battery, but it doesnât work. Very disappointed with the condition of this product.
Forrest R. –
Easy to use
Great tool to measure water quality.
e.kazmo –
For the price it’s a chicken dinner (winner) just 3 stars tho
Looked great. Had a darn nice plastic case. Even had a small user guide and spelled correctly with decent grammar. I pulled out the plastic tab to allow battery (that was included) to open the electron floodgate. Once tab was removed, on came the lights. I gently slid the battery cap back into place. Lights out. I remove bat cap… lights on. Really gently reinserted. About 70% of the way in, off again. It’s like a feature that sucks. Would much prefer an auto-off, or I would be glad to press the OFF button.Star Suckers:If you don’t fully insert the bat cap, the unit no longer fits into the cool plastic case. If you push the cap all the way, fits great. 5 stars, now 4. yes, i cuda used duct tape, but that just seemed wrong. like eating an unsliced foot-long steak hoagie in a new car.Next time you need some TDS nums: Pull out a tiny flat blade screwdriver, that darn lil cap isn’t spring loaded. You’ll need to wiggle it out. Fingernails — useful, only if you need a reason to get a manicure. Sadly, no mention of this in the manual. Result: Mood light sets in. 4 is now 3.However, it was not all that pricey and if you need a quick TDS num, it did just fine. why fine? i ordered a similar unit from diff manufacturer. readings avg’d about 40 ppm apart. based on that, if random 2nd is in same ballpark, it’s not holy-cow moment, but it’s not nuthin. if my TDS was 50, a 40 ppm diff wud be a deal breaker. but my TDS avg was 480, so a small % swing, no biggie. had there been a huge disparity, both wud have been reboxed for my next white elephant party.