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VIVOSUN

VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 10
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Color: Yellow+Blue


Features

  • Application: Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools
  • PH Meter: Full measurement range of pH 0 - 14, reliable and quick readings
  • 3-in-1 TDS Meter: Measurement Range 0-9990ppm, 0-9990s/cm; Accuracy 2%, 0.1- 80.0C, 32.0-176.0F; Note: This meter can't test sea water
  • Features: Comes with protective case; Lightweight, handheld design for portability and convenience
  • Included: PH meter, 3-in-1 TDS meter, 3 calibration buffers

Description

Who are we? Vivosun is the global leader in at-home growing technology & equipment. With over 10 years of demonstrated excellence in the development and production of growing tools, we have established ourselves as a trusted partner for every step in the growing process and for every level of grower. Vivosun's smart grow system enables growers to master the elements for optimal lighting and ventilation to achieve ideal grow results. Founded in California, Vivosun is a leading manufacturer of indoor horticultural equipment. We will help you manage your plants with scientific precision and control all aspects of your grow with high-quality technology and tools including durable growing enclosures;Whether you grow indoors or out, we provide everything you need to grow the highest quality plants in the shortest amount of time. Our mission is to empower growers at all levels and of all types to grow the best of what they love. This Product is protected by Transparency Program, which verifies a product’s authenticity and you can also view rich information about the product you purchased.You can scan it to verify its authenticity with the Transparency app. Tester Combo Digital pH Meter Kit pH Meter 4-in-1 pH Meter 3-in-1 pH Meter 3-in-1 Moisture Meter Nutrients Base A & B

Brand: VIVOSUN


Ph Range: 0-14


Recommended Uses For Product: Aquarium, Home Water, Swimming Pool, Water Quality Testing


Manufacturer: VIVOSUN


UPC:


Brand Name: VIVOSUN


Manufacturer: VIVOSUN


UPC: 615435160962


Model Number: 4336465266


Part Number: 4336465266


Included Components: Test pH, TDS, EC & Temp Value


Item Weight: 0.1 Kilograms


Sterility Rating: 0-14


Material Type: Plastic


Recommended Uses For Product: Aquarium, Home Water, Swimming Pool, Water Quality Testing


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Similar Products

Top Amazon Reviews

    • A must have for that color blind person wanting to keep up with their ph reading! 👍👌
Color: Yellow+Blue
5 Stars — Convenient and Accurate Water Testing Kit This VIVOSUN digital pH and TDS meter kit has been a very useful addition for checking water quality and monitoring pH levels. I’ve used it for pool maintenance and general water testing, and both meters have been simple to operate and easy to read thanks to the clear digital displays. The pH meter responded quickly and gave consistent readings after calibration. I also liked having the separate TDS/EC meter included, since it makes it convenient to monitor multiple water conditions without needing additional equipment. The compact pen-style design is lightweight, portable, and easy to store between uses. Another thing I appreciated was the straightforward calibration process and the included instructions. The readings stabilized fairly quickly, and the hold function on the TDS meter is a helpful feature when testing samples in smaller containers. Overall, this kit offers good value for the price and works well for anyone needing basic digital water testing tools for pools, hydroponics, aquariums, or household use. Accurate, convenient, and easy to use. ... show more
Reviewed in the United States on May 18, 2026 by Amazon Customer
    • Best water testing kit in this price!
Color: Yellow+Blue
I think it is the best product at this time with this price. Very professional and accurate. I have tried few others in the market and am satisfied with it. It comes with TDS and Ph meter, recalibration material that you may need after a long use or not-use being on the shelf. I was surprised to see additional batteries for both TDS and Ph device. ... show more
Reviewed in the United States on May 21, 2026 by Khalid M. Dogar
    • Needs a Liquid Medium for Accurate Readings Needs a Liquid Medium for Accurate Readings
Color: Yellow+Blue
Review Image by Joe V.
I purchased the one that came with the Tds meter easy to use but the calibration part is hard that's why I only gave 4 stars. Ignore, all the bad comments on saying how it fluctuates and I seen reviews showing how it fluctuates, even in the air.Without a liquid medium like water, the meter picks up static, electromagnetic interference, or measures the unpredictable static charge of the air itself. People are just uneducated and don't know how to use items. That's why things get bad reviews ... show more
Reviewed in the United States on June 6, 2026 Reviewed in the United States on June 6, 2026 by Joe V.
    • Appear to work well Appear to work well
Color: Yellow+Blue
Review Image by Jeff K
After reading several reviews on this and other similar models I decided on this two pack PH and TDS. I recently installed a reverse osmosis under kitchen sink with a tds digital display and wanted another way to check its accuracy along with what ph the RO water was putting out. Item arrived quickly and after reading instructions I decided to give it a test. Batteries were already installed and additional batteries were included so that and they both were already calibrated so two pluses from the start. I filled a glass with reverse osmosis water and another from bathroom sink. Tds for bathroom were 107 compared to RO water of 9. This is the same reading my RO system shows so I assume its pretty accurate. Next I tested the PH. Ro water was higher than bath sink water but this units numbers jumped around a bit. Although the numbers did not display steadily i was able to get a good reading and am pleased with the results. For the price I find the two units a great bargain and much better than the water test strips I was using. After my initial tests I highly recommend these products as they appear to be accurate and easy to read. ... show more
Reviewed in the United States on January 9, 2026 Reviewed in the United States on January 9, 2026 by Jeff K
    • The pH meter is bad, the TDS meter worked for about a month
Color: Yellow+Blue
The pH meter ended up being basically useless. I carefully followed all instructions. It took a lot of time and frustration to successfully 3-point calibrate it. After calibration it seemed to be partially accurate but it would take 2+ minutes to provide a reading. Even then, it would start about 2 points above the real reading then slowly keep drifting downwards at a rate of roughly 0.01 per 1-2 seconds. It would never “land” at a reading. After a week of use I gave up on it and just went back to using chemical pH tests because those only take a fraction of the time to get a ballpark reading. The TDS meter was a little better. As I said before I followed all instructions carefully regarding usage and proper storage. For the first month of regular usage (used 1-3 times per week) it worked great and exactly as expected. Then the temperature readings became unreliable. I have other digital thermometers to compare it to and this device was consistently off by about 5-10 degrees fahrenheit which made it useless at that point. The TDS portion of the blue meter seemed to be accurate and mostly worked until the end of the 2nd month. Then it would randomly behave strange. I would test the same sample of water 3+ times over 10 minutes and the ppm reading would fluctuate by 10-40 ppm. Or sometimes I would test two samples of water from my fish tank taken about 24 hours apart. It would read out exactly the same as if the meter was “frozen”. I know that isn’t accurate as the 2nd sample would be taken 24 hours later after a fish feeding and a plant fertilizer dosing. So it’s highly unlikely that it would give an identical reading for the 2nd sample. ... show more
Reviewed in the United States on February 5, 2026 by Josh
    • Calibration Failure
Color: Yellow+Blue
pH Pen did not calibrate as sensitively as stated but is close enough to get a vague idea of the pH. Works ok.
Reviewed in the United States on April 1, 2026 by Jason
    • Good clear reading
Color: Yellow+Blue
As far as I can tell, it's correct. It takes a bit to go down to stop, but it gets there eventually.
Reviewed in the United States on June 7, 2026 by Cade LaTurner
    • Accurate, Reliable, and Great Value pH + TDS Meter Combo!
Color: Yellow+Blue
I recently picked up the **VIVOSUN Digital pH and TDS Meter Kit** and it has quickly become an essential tool in my plant care and hydroponics setup. The **0.01 pH high accuracy** pen-type meter is impressively precise and easy to calibrate. It gives consistent, reliable readings every time I test my nutrient solution or water. The TDS meter is equally solid, with a ±2% readability that helps me monitor nutrient strength accurately. Having both tools in one kit is super convenient — no need to buy them separately. The pens are lightweight, have clear digital displays, and come with everything you need to get started (including calibration buffers for the pH meter). Build quality feels good for the price. The pH probe is responsive, and both meters turn on and shut off automatically to save battery life. They’re compact enough to store neatly and travel well if needed. Since using this kit, I’ve been able to dial in my nutrient mixes much better, which has led to noticeably healthier plant growth and fewer issues with lockout or burn. It’s also great for aquarium owners, pool/spa testing, or anyone who needs precise pH and TDS measurements. If you’re looking for an affordable yet high-accuracy **digital pH and TDS meter kit**, the VIVOSUN combo delivers excellent performance and value. Easy to use and dependable — highly recommended! ... show more
Reviewed in the United States on April 10, 2026 by ProvokaPhoto

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