Electronic Water Tester With 0 0 Measurement Range Digital Water Test Pen For Farming Aquariums Pools Features: The handheld and compact carrying case makes it easy to put in your pocket or bag and take it with you. Perfect for home and laboratory TDS testing applications including drinking water, swimming pools, aquariums, hydroponics and more. Automatic calibration, no need for any adjustment screwdriver, it takes 1-3 seconds to the automatic calibration calibration, measure the total dissolved solids (tds) in the water, know exactly when to replace the water filter. No need any adjustment screwdrivers, just the calibration with Auto calibration with 1-3 seconds, Measure total dissolved solids in water(tds), Know exactly when to change water filters. Quick and Accurate Readings, - Just turn it on, immerse in about 1 inch of water and read the display, the digital display makes it easy to read. Product Description: Electronic Water Tester with 0-0 Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools Material: Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Accurate & Reliable Meter – Get precise water quality data with advanced microprocessor technology. Features ±2% readout accuracy, premium titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) to avoid magnetic field interference in water. Testing range covers 0-9990 ppm, with results displayed in ppm on the LED screen in just 5 seconds. Perfect for a trustworthy water quality tester for daily use. Versatile Water Tester for Multiple Scenarios – (Total Dissolved Solids) meters are essential water testing kits for drinking water. Ideal for checking tap water quality, monitoring RO/DI water filtration systems, aquariums, hydroponic nutrient levels, pools, spas, and commercial/industrial applications. This digital water tester also helps you determine when to replace water filters, ensuring consistent water purity. Why Testing Matters for Your Health & Home – High levels can alter water taste (salty, bitter, metallic) and indicate harmful toxic minerals, posing health risks. They also cause hard water issues: pipe fouling, dry hair, tableware spots, and damaged kitchen utensils. This ppm meter helps you avoid these problems. Note: The recommended maximum TDS concentration for drinking water is 500 ppm (per general water quality guidelines). Long Battery Life & User-Friendly Operation – Simple one-button control: press "ON/OFF" to start testing, press "HOLD" to lock readings. Powered by 2 x 1.5V LR44 button cell batteries (included), offering a long service life of over 2 years. Auto-power-off after 5 minutes of inactivity saves battery power, reducing replacement frequency. Easy-to-Read Display for Instant Results – Equipped with a large, high-visibility LCD screen that makes reading TDS values quick and effortless, even in low-light conditions. Lightweight and compact design, combined with the clear display, ensures convenient use for both home and on-the-go water testing needs.