---
product_id: 125787877
title: "TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries"
brand: "boom scientific"
price: "FREE"
currency: SGD
in_stock: false
reviews_count: 3
url: https://www.desertcart.sg/products/125787877-tds-meter-digital-water-quality-tester-pen-measure-ec-temperature
store_origin: SG
region: Singapore
---

# TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries

**Brand:** boom scientific
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries by boom scientific
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/125787877-tds-meter-digital-water-quality-tester-pen-measure-ec-temperature)

## Best For

- boom scientific enthusiasts

## Why This Product

- Trusted boom scientific brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

A TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality. TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. With the push of a button, the TDS meter can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). The lower the TDS level, the purer the water, with 0 ppm being pure H2O. The TDS meter is great for checking your tap water quality, or knowing when to change a filter. (The meter DOES NOT test for biological contaminants or PH level.) The TDS meter is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas, and more.Specifications: * Measuring Range:  TDS: 0 - 9990 ppm (parts per million)  Conductivity: 0 - 9990 µs/cm Degrees Celsius: 0.1 - 50.0°C Fahrenheit: 32.0 - 122.0°F * Accuracy: ± 2% F.S * Net Weight:2.82oz(80g) * Size: 6.38 x 1.18 x 0.63 inches (16.2 x 3.0 x 1.6 cm)Package Contents:1x TDS Meter 1x Instruction sheet 1x Portable carrying case 2x CR2032 Batteries

## Features

- Make sure this fits by entering your model number.
- ✓ TEST YOUR WATER: The TDS water tester will calculate and display your overall water purity level in ppm (parts per million), Temperature (°C or °F), and Electrical Conductivity
- ✓ SIMPLE AND ACCURATE: Measure your water quality instantly! Simply stick the titanium probe in about 1 inch of water to get a reading.
- ✓ COLORED BACKLIGHT DISPLAY: 0 - 9990 ppm range. The screen will display a green backlight when TDS value ≤ 40 and a red backlight when TDS value > 40
- ✓ AUTO-SHUTDOWN AND HOLD: The TDS tester will shut off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording
- ✓ WHATS INCLUDED: 1 Boom Scientific TDS meter, carrying pouch with belt clip, 2 CR2032 batteries

## Images

![TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries - Image 1](https://m.media-amazon.com/images/I/41fsH1t6U9L.jpg)
![TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries - Image 2](https://m.media-amazon.com/images/I/71vOLr0L5yL.jpg)
![TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries - Image 3](https://m.media-amazon.com/images/I/417xj-gidAL.jpg)
![TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries - Image 4](https://m.media-amazon.com/images/I/61qWD5TyD3L.jpg)
![TDS Meter Digital Water Quality Tester Pen, Measure EC and Temperature, 0-9990 ppm, 3-in-1 Stick Ideal for Pool, Hydroponic, Aquarium, Drinking Water, with Carrying Case + 2 Free Batteries - Image 5](https://m.media-amazon.com/images/I/51B6D3232SL.jpg)

## Customer Reviews

### ⭐⭐ 







  
  
    Cheap, not water resistant at all. Came with calibration issues.
  

*by D***L on Reviewed in the United States on March 1, 2020*

Not a fan. I picked this up as a back up, for those "just incase" situations. Tested it, compared to a properly calibrated BlueLab digital ppm meter this thing is not worth the cash. Out of the box it came with calibration issues that i'm not sure how to fix, it reads between +\- 0-200 ppm off of my bluelab. And the issue changes through resets for example, Ill reset the probe after testing a solution at 800 ppm Ill retest the SAME solution and get a different result each time.... HOW?It has other problems like water seeping into the housing if the liquid is deeper than an inch, causing all manner of issues. The covers do not seal well for storage, etc...I don't know if it broke during shipping or if it is just terrible for everyone, but i'm not happy. Since its only $10 i just tossed it, no big loss to me but I hope it will save someone else out there some cash, quality matters with measurement devices.The black storage case and extra battery were nice, so kudos there i guess.

### ⭐⭐⭐⭐⭐ 







  
  
    Works as advertised!
  

*by M***D on Reviewed in the United States on May 7, 2019*

Great product, and the readings are instant. I first tried they product with bottled water, then immediately with tap water. The water bottle was green and the tap water was red, indicating water you should not drink.

### ⭐⭐⭐⭐⭐ 







  
  
    Good price good item.
  

*by J***Y on Reviewed in the United States on December 31, 2019*

No problems so far. Easy to use and calibrate.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-26*