--- product_id: 274999055 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: "€ 41.82" currency: EUR in_stock: true category: "Hm Digital" url: https://www.desertcart.hr/products/274999055-hm-digital-tds-3-handheld-tds-meter-with-carrying-case store_origin: HR region: Croatia --- # Β±2% accuracy 0-9990 ppm range Large LCD display 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:** € 41.82 **Availability:** βœ… In Stock ## Summary > πŸ’§ Know your water, own your wellness β€” don’t settle for less purity! ## 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?** € 41.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/274999055-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 - β€’ **Smart Data Capture:** Hold function saves readings for effortless tracking and reporting. - β€’ **Dual-Function Display:** Integrated digital thermometer alongside TDS readings for comprehensive water quality checks. - β€’ **Precision at Your Fingertips:** Instantly measure water purity with 1 ppm resolution for crystal-clear insights. - β€’ **Advanced Microprocessor Power:** Ensures highly accurate, reliable results you can trust every time. - β€’ **Built for Professionals On-the-Go:** Includes rugged carrying case with belt clipβ€”take it anywhere, anytime. ## Overview The HM Digital TDS-3 is a handheld Total Dissolved Solids meter designed for professionals and water quality enthusiasts. It measures water purity from 0 to 9990 ppm with 1 ppm resolution and Β±2% accuracy, featuring an advanced microprocessor and a large, easy-to-read LCD screen. Equipped with a hold function and a built-in digital thermometer, it comes with a durable carrying case and belt clip for convenient, on-the-go use across commercial, industrial, and personal 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 | | ASIN | B000VTQM70 | | Additional Features | Advanced Microprocessor Technology, High Accuracy | | Age Range Description | Adult | | Batteries | 2 LR44 batteries required. (included) | | Brand Name | HM Digital | | Color | Style 1 | | Customer Reviews | 4.4 4.4 out of 5 stars (1,749) | | Customer reviews | 4.4 4.4 out of 5 stars (1,749) | | Date First Available | 7 August 2012 | | Department | Fish & Aquatic Pets | | Display Type | Digital | | Global Trade Identification Number | 00826333000001 | | Included Components | Carrying case | | Indoor Outdoor Usage | Indoor | | Is Discontinued By Manufacturer | No | | Item Weight | 0.2 Grams | | Item model number | TDS-3 | | Manufacturer | HM Digital | | Manufacturer | HM Digital | | Model | TDS-3 | | Model Name | TDS-3 | | Number of Batteries | 2 LR44 batteries required. (included) | | Outer Material | Plastic | | Part Number | TDS-3 | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Product Dimensions | 15.24 x 3.81 x 2.54 cm; 0.2 g | | Resolution | 1 ppm | | Reusability | Single Use | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | See Manual | | Style Name | Contemporary | | UPC | 891144000083 826333000001 | | Unit Count | 1 Count | | Upper Temperature Range | 9990 Degrees Celsius | ## Product Details - **Age range (description):** Adult - **Brand:** HM Digital - **Colour:** Style 1 - **Included components:** Carrying case - **Special features:** Advanced Microprocessor Technology, High Accuracy ## 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) ## Available Options This product comes in different **Size** options. ## 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 - HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy - HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue - HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/274999055-hm-digital-tds-3-handheld-tds-meter-with-carrying-case](https://www.desertcart.hr/products/274999055-hm-digital-tds-3-handheld-tds-meter-with-carrying-case) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-23*