---
product_id: 51745800
title: "HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy"
brand: "hm digital"
price: "861 kr"
currency: NOK
in_stock: true
url: https://www.desertcart.no/products/51745800-hm-digital-tds-3-handheld-tds-meter-with-carrying-case
store_origin: NO
region: Norway
---

# 2% readout accuracy 0-9990 ppm range 1 ppm resolution HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy

**Brand:** hm digital
**Price:** 861 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Measure purity like a pro — don’t let your water quality be a mystery!

## Quick Answers

- **What is this?** HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy by hm digital
- **How much does it cost?** 861 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/51745800-hm-digital-tds-3-handheld-tds-meter-with-carrying-case)

## Best For

- hm digital enthusiasts

## Why This Product

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

## Key Features

- • **Smart Data Capture:** Hold function saves your readings for effortless tracking and reporting.
- • **Dual-Function Display:** Large, easy-to-read LCD shows both TDS levels and temperature in real-time.
- • **Built for Professionals:** Rugged design with a protective carrying case and belt clip for on-the-go reliability.
- • **Trusted Industry Standard:** Advanced microprocessor technology ensures 2% accuracy trusted by experts worldwide.
- • **Precision at Your Fingertips:** Instantly measure water purity with 1 ppm resolution for crystal-clear insights.

## Overview

The HM Digital TDS-3 is a handheld Total Dissolved Solids meter designed for precise water quality testing with a 0-9990 ppm range, 1 ppm resolution, and 2% accuracy. Featuring a large LCD screen that also displays temperature, a hold function for saving readings, and a rugged carrying case with belt clip, it’s the go-to tool for professionals in water filtration, hydroponics, aquariums, and industrial applications.

## Description

Product 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-3 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-3 is great for checking your tap water quality, or knowing when to change a filter. (The meter does not test for biological contaminants.) The TDS-3 is a great tool for drinking water, water filtration and purification, colloidal silver, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas, commercial and industrial applications and more. The TDS-3 is a rugged model that includes a protective carrying case. This is the world's most popular handheld TDS meter for industry professionals.

## Features

- Its Ideal for Commercial Use
- Its Includes a Carrying Case with Belt Clip
- Hold Function: Saves Measurements for Convenient Reading and Recording
- Highly Efficient and Accurate Due to Its Advanced Microprocessor Technology
- Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000VTQM70 |
| Age Range Description | Adult |
| Battery Life | 3 Hours |
| Best Sellers Rank | 325,356 in DIY & Tools ( See Top 100 in DIY & Tools ) 767 in Multi Testers |
| Brand | HM Digital |
| Colour | Style 1 |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,835) |
| Display Type | Digital |
| Global Trade Identification Number | 00826333000001 |
| Included Components | Carrying case, 2 x 1.5V button cell batteries |
| Indoor Outdoor Usage | Indoor |
| Item Length | 1 Inches |
| Item Weight | 0.2 Grams |
| Manufacturer | HM Digital |
| Manufacturer Part Number | TDS-3 |
| Model Name | TDS-3 |
| Model Number | TDS-3 |
| Number of Batteries | 2 LR44 batteries required. (included) |
| Outer Material | Plastic |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Resolution | 1 ppm |
| Reusability | Single Use |
| Special Features | High Accuracy |
| Specification Met | Tds |
| Style Name | Contemporary |
| UPC | 891144000083 826333000001 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 9990 Degrees Celsius |

## Product Details

- **Age range (description):** Adult
- **Brand:** HM Digital
- **Colour:** Style 1
- **Display type:** Digital
- **Included components:** Carrying case, 2 x 1.5V button cell batteries
- **Outer material:** Plastic
- **Product care instructions:** Wipe Clean
- **Special feature:** High Accuracy
- **Specification met:** Tds
- **Unit count:** 1.0 count

## Images

![HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 1](https://m.media-amazon.com/images/I/512msUopWxL.jpg)
![HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 2](https://m.media-amazon.com/images/I/21c-x+qVmVL.jpg)
![HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 3](https://m.media-amazon.com/images/I/31Gl4T+EdoL.jpg)
![HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 4](https://m.media-amazon.com/images/I/31WD27pcK7L.jpg)
![HM Digital TDS-3 Handheld TDS Meter with Carrying Case, 0-9990 ppm TDS Measurement Range, 1 ppm Resolution, 2% Readout Accuracy - Image 5](https://m.media-amazon.com/images/I/41AoYn4swjL.jpg)

## Questions & Answers

**Q: Does this TDS compensate for differences in temperature like the HM Digital TDS-4?**
A: Yes if it was a real HM TDS meter but it is not.  It's a knock off.  Go to manufacturer's webpage and find a dealer in your area and order it there if you want a real meter.  
I spoke to the manufacturer HM DIGITAL today and they said the photo of this product is an original, but the product they ship is NOT.  The original real HM Digital TDS-3 have a printed instruction in black letters on the back of the meter that says "CALIBRATION" and has a screw to calibrate.  The knock-off simply has a hole and no printed words about calibration on it.  The original also has 5 bumps on each edge of the meter like the photo, but the one this seller ships does not.  Lastly, the real HM TDS-3 will display "HM" on the screen when you turn it on and then will display 00, but when you first turn it on will display HM.

**Q: Where is this item made?**
A: This is a a knock-off.  I spoke to the manufacturer HM DIGITAL today and they said the photo of this product is an original, but the product they ship is NOT.  The original real HM Digital TDS-3 have a printed instruction in black letters on the back of the meter that says "CALIBRATION" and has a screw to calibrate.  The knock-off simply has a hole and no printed words about calibration on it.  The original also has 5 bumps on each edge of the meter like the photo, but the one this seller ships does not.  Lastly, the real HM TDS-3 will display "HM" on the screen when you turn it on and then will display 00, but when you first turn it on will display HM.

**Q: Does this teat for lead , mercury, cadmium and other metals? If so, does it tell you concentrations?**
A: No, it does not test for any specific dissolved solid. It tells you the purity of the water only. In other words, how close is the water sample is to distilled water.

**Q: The one I bought seems to work however it has no way to adjust it there is a hole in the back but no screw is it a imposter?**
A: That's because it's a knock-off.  I spoke to the manufacturer HM DIGITAL today and they said the photo of this product is an original, but the product they ship is NOT.  The original real HM Digital TDS-3 have a printed instruction in black letters on the back of the meter that says "CALIBRATION" and has a screw to calibrate.  The knock-off simply has a hole and no printed words about calibration on it.  The original also has 5 bumps on each edge of the meter like the photo, but the one this seller ships does not.  Lastly, the real HM TDS-3 will display "HM" on the screen when you turn it on and then will display 00, but when you first turn it on will display HM.

## Frequently Bought Together

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-17*