{"product_id":"digital-tds-meter-water-quality-tester-0-9990ppm","title":"Digital TDS Meter 0–9990 ppm Water Quality Tester","description":"\n\u003ch2\u003eKnow What's In Your Water — Instantly\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDigital TDS Meter\u003c\/strong\u003e gives you fast, accurate Total Dissolved Solids readings in seconds. Whether you're monitoring your drinking water, fine-tuning a hydroponic setup, maintaining a healthy aquarium, or keeping your pool and spa in balance, this pocket-sized tester puts professional-grade water quality data right at your fingertips.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Monitor TDS?\u003c\/h3\u003e\n\u003cp\u003eTDS (Total Dissolved Solids) measures the concentration of inorganic salts and organic matter — including calcium, magnesium, and sodium — dissolved in water. A low TDS reading typically indicates purer water, while a high reading can signal that filtration or water treatment is needed. Tracking TDS is essential for drinking water safety, hydroponic nutrient solutions, aquarium health, pool\/spa maintenance, coffee brewing, kombucha fermentation, and laboratory use.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e 0–9990 ppm — suitable for a huge variety of water sources\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e± 2% Accuracy:\u003c\/strong\u003e Reliable readings you can trust at home or in the field\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge LCD Display:\u003c\/strong\u003e Easy-to-read digits even in low-light conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Function:\u003c\/strong\u003e Freeze the reading on-screen for convenient recording without having to hold the probe in place\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandheld Pen Style:\u003c\/strong\u003e Slim, lightweight design slips easily into a pocket, bag, or lab coat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof Body:\u003c\/strong\u003e Durable ABS plastic construction designed to handle wet environments (max immersion depth: 4 cm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Power Processor:\u003c\/strong\u003e Maximises battery life for extended use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasuring Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–9990 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~13.8 × 2.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × LR44 (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDrinking water \u0026amp; home filtration systems\u003c\/li\u003e\n  \u003cli\u003eHydroponics \u0026amp; aquaponics\u003c\/li\u003e\n  \u003cli\u003eAquariums \u0026amp; aquaculture\u003c\/li\u003e\n  \u003cli\u003ePool, hot tub \u0026amp; spa maintenance\u003c\/li\u003e\n  \u003cli\u003eCoffee \u0026amp; kombucha brewing\u003c\/li\u003e\n  \u003cli\u003eCar wash water quality\u003c\/li\u003e\n  \u003cli\u003eLaboratory \u0026amp; scientific testing\u003c\/li\u003e\n  \u003cli\u003eEcology \u0026amp; colloidal silver testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e immerse the meter in liquid beyond the maximum immersion level of 4 cm.\u003c\/li\u003e\n  \u003cli\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e store in high temperatures or direct sunlight.\u003c\/li\u003e\n  \u003cli\u003eBatteries (2 × LR44) are \u003cstrong\u003enot\u003c\/strong\u003e included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More From Our Store\u003c\/h3\u003e\n\u003cp\u003eLooking for other home and hobby essentials? Check out our \u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster\u003c\/a\u003e to keep your workspace inspired, or browse our \u003ca href=\"\/products\/all-carb-diet-funny-quote-canvas-wall-art-print-home-decor\"\u003e\"All Carb Diet\" Funny Quote Canvas Wall Art\u003c\/a\u003e to add personality to your kitchen or dining area.\u003c\/p\u003e\n\n\u003ch3\u003eAuthoritative Resource\u003c\/h3\u003e\n\u003cp\u003eFor more information on drinking water quality and what TDS levels mean for your health and home, visit the \u003ca href=\"https:\/\/www.epa.gov\/ground-water-and-drinking-water\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. EPA Ground Water and Drinking Water resource\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does a TDS meter actually measure?\u003c\/h4\u003e\n\u003cp\u003eA: A TDS (Total Dissolved Solids) meter measures the combined concentration of all inorganic and organic substances dissolved in water — such as calcium, magnesium, sodium, and other minerals — expressed in parts per million (ppm). The higher the ppm reading, the more dissolved solids are present in the water.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is a good TDS level for drinking water?\u003c\/h4\u003e\n\u003cp\u003eA: The EPA recommends a secondary guideline of 500 ppm or less for drinking water. Many people prefer water below 300 ppm for taste and quality. This Digital TDS Meter's 0–9990 ppm range lets you monitor both very clean and heavily mineral-laden water sources.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this TDS meter come with batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No — the meter requires 2 × LR44 button-cell batteries, which are not included. These are widely available at hardware stores, pharmacies, and online retailers.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this TDS meter for my aquarium or hydroponics setup?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. This meter is designed for a wide range of applications including aquariums, aquaculture, hydroponics, pools, spas, and more. Its 0–9990 ppm range covers the full spectrum of dissolved solids levels you'll encounter in these environments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How deep can I submerge the probe?\u003c\/h4\u003e\n\u003cp\u003eA: The meter is waterproof up to a maximum immersion depth of 4 cm (approximately 1.5 inches). Do not submerge beyond this level to protect the internal electronics.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does a TDS meter actually measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A TDS (Total Dissolved Solids) meter measures the combined concentration of all inorganic and organic substances dissolved in water — such as calcium, magnesium, sodium, and other minerals — expressed in parts per million (ppm). 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