NJTY A11 TDS Water Tester, 0-9990 ppm, Color-Coded Display

NJTY A11 TDS Water Tester, 0-9990 ppm, Color-Coded Display

• High-Precision Probe & Wide Measurement Range：This digital water tester features a factory-calibrated high-sensitivity probe, delivering fast and stable readings across 0–9990 ppm. Ready to test tap water, bottled water, RO/DI systems, and mineral water—no manual calibration required. Ideal for drinking water TDS testing and water ppm analysis
• Auto Backlit Screen with Clear Color Indicators：The large LCD automatically illuminates when powered on, ensuring clear visibility in low-light conditions. This TDS tester for drinking water uses color-coded alerts:Green display for TDS < 50 ppm, Red display for TDS ≥ 50 ppm, providing instant visual feedback on total dissolved solids levels. Note: TDS measures total dissolved solids and does not identify specific contaminants
• Simple Operation & Auto Shut-Off：Press the power button to turn on, immerse the probe between the immersion marks and gently stir. Once the reading stabilizes, press HOLD to lock the value. Automatically shuts off after 1 minute of inactivity to conserve battery life
• Portable Design & Care Instructions：Compact and lightweight, this portable water tester is designed for daily use. Powered by 2×LR44 batteries (install with the “+” side facing left). After each test, dry the probe and avoid liquids exceeding 104°F (40°C) to ensure longevity
• Multi-Scenario Use & Support：A versatile ppm meter for drinking water, swimming pools, aquariums, garden irrigation, hydroponics, and travel/camping. Includes a 30-day warranty and expert support to help you monitor daily water quality and make informed choices