---
product_id: 42468543
title: "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"
brand: "vivosun"
price: "C$2267"
currency: NIO
in_stock: true
reviews_count: 8
category: "Vivosun"
url: https://www.desertcart.ni/products/42468543-vivosun-digital-ph-and-tds-meter-kits-0-01ph-high
store_origin: NI
region: Nicaragua
---

# TDS up to 9990 ppm 0.01 pH precision Temp range 0.1-80°C 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

**Brand:** vivosun
**Price:** C$2267
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of the curve with precision water testing that professionals trust!

## Quick Answers

- **What is this?** 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 by vivosun
- **How much does it cost?** C$2267 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/42468543-vivosun-digital-ph-and-tds-meter-kits-0-01ph-high)

## 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

- • **Trusted & Certified:** UL certified for safety and reliability, backed by thousands of positive reviews from professionals and enthusiasts alike.
- • **Portable & Ready to Use:** Lightweight pen design with pre-installed batteries and included calibration buffers—test anywhere, anytime.
- • **Instant, Reliable Readings:** Fast response with ±2% accuracy means you get actionable data without the wait or guesswork.
- • **All-in-One Water Quality Monitoring:** 3-in-1 TDS, EC, and temperature meter covers every essential metric for hydroponics, pools, and aquariums.
- • **Lab-Grade Precision at Your Fingertips:** Ultra-accurate 0.01 pH resolution ensures you never miss a critical water quality shift.

## Overview

The VIVOSUN Digital pH and TDS Meter Kit offers ultra-precise 0.01 pH measurement, combined with a 3-in-1 TDS, EC, and temperature meter capable of reading up to 9990 ppm and 80°C. Designed for hydroponics, aquariums, and pools, this UL-certified, handheld device comes ready to use with pre-installed batteries and calibration buffers, delivering fast, reliable water quality data trusted by thousands of users.

## Description

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: desertcart.com: Industrial & Scientific

Review: Appear to work well - 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.
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.

## 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, 0-9990µs/cm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F; 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XKMH86J |
| Best Sellers Rank | #480 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Lab pH Meters |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Customer Reviews | 4.0 out of 5 stars 32,186 Reviews |
| Included Components | Test pH, TDS, EC & Temp Value |
| Item Weight | 0.1 Kilograms |
| Manufacturer | VIVOSUN |
| Material | Plastic |
| Material Type | Plastic |
| Ph Range | 0-14 |
| Recommended Uses For Product | Aquarium, Home Water, Swimming Pool, Water Test |
| Sterility Rating | 0-14 |
| UPC | 615435160962 |

## Product Details

- **Brand:** VIVOSUN
- **Manufacturer:** VIVOSUN
- **Ph Range:** 0-14
- **Recommended Uses For Product:** Aquarium, Home Water, Swimming Pool, Water Test
- **UPC:** 615435160962

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61saEhctTWL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: I have purchased 2 of these, why are they so inaccurate?**
A: If you calibrate ANY PH meter using the mix it yourself "calibration" solutions, accuracy will be impossible. I just purchased this meter set, and discovered the distilled water I use was ph4 and below! I have the "other" style cheap meter, that has proven very stable for me, and after checking it in GHP 7.0 calibration solution, used it to test the accuracy of this relentlessly poor example of a ph testing system. 
First off, the solution instructions make no mention what the ph of the distilled water needs to be. My 4.0 water mixed with the 4.0 and 6.86 powder, resulted in a solution of 3.3 and 6.0 instead, so IMO, the MIY calibration solutions are a joke, as are ph meters that calibrate on the 6.86 standard instead of 7.0.

**Q: If i use a 7.0 calibration solution will the automatic calibration be off by .14 since it comes with a 6.86 calibratind powder?**
A: Yes! I recently calibrated with 7.0. Prior to calibration, it read the 7.0 solution at 7.0, calibrated with 7.0 solution it now reads 7.18. Find the correct calibration solution

**Q: If my tap water is between 6.5 and 7.0 ph do i need to add the ph up and down liquid i bought for indoor cannabis grow? What about ppm?**
A: If you’re growing in soil 6.5 is perfect if you’re growing in Hydro/water do you want to be around 5.8 say you’re at 7.0 PH I would just add a couple drops per gallonTo get it down two around 6.5

**Q: If I choose EC, does it retain the setting after power cycles?**
A: Yes, but my meter randomly switched back to TDS.  The "EC" does not show a decimal, and the numbers are too close to TDS. If you don't pay attention, you will hurt your plants.

Do not purchase.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Appear to work well
*by J***K on January 9, 2026*

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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Good Value, but the pH Meter Is Slow
*by D***S on October 25, 2025*

The TDS meter works very well, especially considering the low price — it gives quick and reliable readings. However, the pH meter takes a bit longer to stabilize and provide an accurate measurement. Overall, it’s a useful and affordable kit for basic water quality testing, but be patient with the pH readings.

## Frequently Bought Together

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-24*