{"product_id":"digital-tds-ec-ppm-water-quality-tester-meter-lcd-pen","title":"Digital TDS EC PPM Water Quality Tester Meter | 0–9990 LCD Pen","description":"\n\u003ch2\u003e3-in-1 Digital Water Quality Tester — TDS, EC \u0026amp; Temperature in One Pen\u003c\/h2\u003e\n\u003cp\u003eKeep your water clean and your family confident with this compact, easy-to-use \u003cstrong\u003eDigital TDS EC PPM Water Quality Tester Pen\u003c\/strong\u003e. Whether you're checking tap water, filtered water, aquariums, hydroponics, or pool water, this pocket-sized meter gives you fast, accurate readings at a glance on its bright white LCD display.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-in-1 Measurement:\u003c\/strong\u003e Simultaneously reads \u003cstrong\u003eTDS (Total Dissolved Solids)\u003c\/strong\u003e in PPM, \u003cstrong\u003eEC (Electrical Conductivity)\u003c\/strong\u003e in µS\/cm, and \u003cstrong\u003eWater Temperature\u003c\/strong\u003e in °C\/°F — all from a single device.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e 0–9990 PPM \/ 0–9990 µS\/cm; Temperature: 0.1–80.0°C (32.0–176.0°F); Accuracy: ±2%.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto Temperature Compensation (ATC):\u003c\/strong\u003e Built-in ATC ensures readings stay accurate regardless of water temperature fluctuations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData-Hold Function:\u003c\/strong\u003e Locks your reading on screen so you can record results easily — no more guessing or rushing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge White LCD Display:\u003c\/strong\u003e Clear, backlit screen makes readings easy to see even in low light.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory Calibrated \u0026amp; Ready to Use:\u003c\/strong\u003e Comes pre-calibrated right out of the box — just dip and read.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Battery Life:\u003c\/strong\u003e Smart auto-off function conserves battery power; lower energy consumption than traditional TDS meters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Included:\u003c\/strong\u003e Everything you need is in the box — just unwrap and start testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDrinking water \u0026amp; home filtration systems\u003c\/li\u003e\n  \u003cli\u003eAquariums \u0026amp; fish tanks\u003c\/li\u003e\n  \u003cli\u003eHydroponics \u0026amp; gardening\u003c\/li\u003e\n  \u003cli\u003eSwimming pools \u0026amp; spas\u003c\/li\u003e\n  \u003cli\u003eReverse osmosis (RO) systems\u003c\/li\u003e\n  \u003cli\u003eLaboratories \u0026amp; educational use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS 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\u003eEC Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–9990 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1–80.0°C \/ 32.0–176.0°F\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\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory Calibrated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/all-guests-approved-by-the-dog-funny-canvas-wall-art-print\"\u003eAdd a fun touch to your home — \"All Guests Approved By The Dog\" Funny Canvas Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/better-days-are-coming-motivational-canvas-wall-art-print\"\u003e\"Better Days Are Coming\" Motivational Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About Water Quality\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe drinking water standards and what TDS levels mean for your health, visit the \u003ca href=\"https:\/\/www.cdc.gov\/healthywater\/drinking\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCDC Healthy Water: Drinking Water\u003c\/a\u003e resource page.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does a TDS EC PPM meter measure and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: A TDS (Total Dissolved Solids) EC (Electrical Conductivity) PPM meter measures the concentration of dissolved particles in water, expressed in parts per million (PPM) or microsiemens per centimeter (µS\/cm). High TDS levels can indicate the presence of minerals, chemicals, or other substances in your water. Monitoring TDS helps you know when water filters need replacing and ensures your drinking or aquarium water remains within safe, optimal ranges.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I use this digital water tester pen?\u003c\/h4\u003e\n\u003cp\u003eA: Simply remove the protective cap, turn on the device, and dip the metal probes into the water sample. The large LCD display will show TDS, EC, and temperature readings within seconds. Use the data-hold button to lock the reading on screen for easy recording. Rinse the probes with clean water after each use and replace the cap when storing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this TDS meter suitable for aquarium and hydroponics use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This 3-in-1 digital water quality tester is widely used for aquariums, fish tanks, hydroponics systems, and gardening. Monitoring EC and TDS levels is essential for maintaining the right nutrient balance in hydroponic setups and ensuring a healthy environment for fish and aquatic life.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this meter come calibrated, and can it be recalibrated?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, this TDS EC meter comes factory calibrated and is ready to use straight out of the box. For most home and hobby applications, factory calibration provides reliable ±2% accuracy. Advanced users may refer to standard calibration solutions if fine-tuning is needed over time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the measurement range of this water quality tester?\u003c\/h4\u003e\n\u003cp\u003eA: This digital water tester covers a TDS range of 0–9990 PPM, an EC range of 0–9990 µS\/cm, and a temperature range of 0.1–80.0°C (32.0–176.0°F), making it versatile for a wide variety of water testing applications.\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 EC PPM meter measure and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A TDS (Total Dissolved Solids) EC (Electrical Conductivity) PPM meter measures the concentration of dissolved particles in water, expressed in parts per million (PPM) or microsiemens per centimeter (µS\/cm). High TDS levels can indicate the presence of minerals, chemicals, or other substances in your water. Monitoring TDS helps you know when water filters need replacing and ensures your drinking or aquarium water remains within safe, optimal ranges.\"}}, {\"@type\": \"Question\", \"name\": \"How do I use this digital water tester pen?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Simply remove the protective cap, turn on the device, and dip the metal probes into the water sample. The large LCD display will show TDS, EC, and temperature readings within seconds. Use the data-hold button to lock the reading on screen for easy recording. Rinse the probes with clean water after each use and replace the cap when storing.\"}}, {\"@type\": \"Question\", \"name\": \"Is this TDS meter suitable for aquarium and hydroponics use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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