--- product_id: 595143450 title: "TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC)" brand: "themisto" price: "S$8" currency: SGD in_stock: true reviews_count: 8 category: "Themisto" url: https://www.desertcart.sg/products/595143450-tds-40-tds-meter-digital-tds-meter-with-temperature-water store_origin: SG region: Singapore --- # 0-999 ppm precision TDS range Multi-mode TDS, EC & Temp with memory Temperature measurement up to 60°C TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) **Brand:** themisto **Price:** S$8 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of impurities—test smarter, live healthier! ## Quick Answers - **What is this?** TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) by themisto - **How much does it cost?** S$8 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/595143450-tds-40-tds-meter-digital-tds-meter-with-temperature-water) ## Best For - themisto enthusiasts ## Why This Product - Trusted themisto brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Data-Hold & Auto Lock:** Lock your readings automatically for easy recording and stress-free monitoring. - • **Compact & Portable Design:** Sleek, lightweight, and pocket-friendly—perfect for on-the-go water quality checks. - • **User-Friendly Digital Display:** Large LCD screen with intuitive interface ensures quick, accurate readings every time. - • **Precision Water Purity Insight:** Instantly quantify dissolved solids with 1 ppm resolution for crystal-clear confidence. - • **Smart Multi-Mode Functionality:** Seamlessly switch between TDS, EC, and temperature modes with memory recall for effortless testing. ## Overview The TDS-40 Digital TDS Meter offers precise water quality measurement with a 0-999 ppm range and temperature sensing up to 60°C. Featuring multi-mode conversion between TDS, EC, and temperature, plus data-hold and auto-lock functions, it delivers reliable, easy-to-read results in a compact, portable design. Ideal for ensuring the purity of your drinking water and RO purifier efficiency. ## Description Product Description Test before you drink! We cannot visually determine the purity of drinking water. Even seemingly clear and transparent water may contain a lot of impurities. That's why it's essential to test your water before drinking it. Don't take any chances with your health-invest in a TDS meter today! Review: TDS reading is accurate - Good so far ..Reading is good n accurate.. just received today Review: Good. Workring fine - Good ## Features - Water Purity Assessment: TDS meters measure the concentration of dissolved solids in water, providing a quick and reliable indicator of water purity. - Locks your reading making it easy to record. Large, easy to read LCD screen and data-hold function makes reading and recording a snap. “HOLD” automatic locking, “SHIFT” automatic conversion, 5 minutes Automatic locks. - User-Friendly Design: Shift and Hold function, Compact and portable, TDS meters are easy to use, featuring a simple interface and digital display for instant readings. - MULTI-MODE CONVERSION TDS, EC and Temperature Meter, TDS instrument a total of 4 different modes, press the SHIFT key can be converted between different modes. Mode memory function, each boot mode is the default mode used before the shutdown. - Measurement Range: From 0-999 ppm, with a resolution of 1 ppm. From 1,000 to 9,9990, the resolution is 10ppm, indicated by blinking “× 10” symbol. It works at 0 - 60 Deg.C ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CQLQQ42K | | Are batteries included? | Yes | | Batteries | 2 LR44 batteries required. (included) | | Best Sellers Rank | #4,827 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Conductivity Meters & Accessories | | Brand | THEMISTO | | Colour | Blue | | Country of Origin | China | | Customer Reviews | 3.9 3.9 out of 5 stars (280) | | Date First Available | 19 December 2023 | | Generic Name | TDS Meter | | Importer | Jipvi Ecommerce Pvt. Ltd. | | Included Components | 1x TDS Meter | | Item Dimensions LxWxH | 15.4 x 3 x 1.4 Centimeters | | Item Height | 14 Millimeters | | Item Weight | 47 g | | Item Width | 30 Millimeters | | Item model number | TDS-40 | | Manufacturer | Guangzhou BStar electronic and technology co. Ltd., Guangzhou BStar electronic and technology co. Ltd. | | Model number | TDS-40 | | Net Quantity | 1 Count | | Number of Memory Sticks | 1 | | Packer | Jipvi Ecommerce Pvt. Ltd. | | Product Dimensions | 15.4 x 3 x 1.4 cm; 47 g | ## Images ![TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) - Image 1](https://m.media-amazon.com/images/I/416jPlf92-L.jpg) ![TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) - Image 2](https://m.media-amazon.com/images/I/71rFLVhQweL.jpg) ![TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) - Image 3](https://m.media-amazon.com/images/I/71CqVrib64L.jpg) ![TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) - Image 4](https://m.media-amazon.com/images/I/81QHkaaEp4L.jpg) ![TDS-40 TDS Meter/Digital Tds Meter with Temperature And Water Quality Measurement For Ro Purifier (TDS EC) - Image 5](https://m.media-amazon.com/images/I/71nEI8SgzTL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ TDS reading is accurate *by H***. on 6 November 2025* Good so far ..Reading is good n accurate.. just received today ### ⭐⭐⭐⭐ Good. Workring fine *by A***R on 29 June 2025* Good ### ⭐⭐⭐⭐⭐ Works well *by T***A on 27 January 2026* Works well --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/595143450-tds-40-tds-meter-digital-tds-meter-with-temperature-water](https://www.desertcart.sg/products/595143450-tds-40-tds-meter-digital-tds-meter-with-temperature-water) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-07-22*