4 in 1 Digital Water Quality Tester - TDS/EC/Temperature（°C/°F）TDS Meter | 0-9999 ppm | Accurate and Professional for Drinking Water, Hydroponics, Aquariums, RO Systems, Pool(2025 New)

• 【 Reliable Accuracy 】Our TDS Meter 4-in-1 Digital water tester combines a high-performance smart chip with a rugged titanium probe for fast, consistent results. Perfect for drinking water, aquariums, tap water, and more - trust every drop • 【 4-in-1 Water Quality Tester 】Switch between TDS, EC, and °F / °C with one tap. Get instant, accurate readings for tap water, drinking water, or hydroponics — anytime, anywhere • 【 Smart Color Alerts & Big-Screen Clarity 】Our profrssional water hardness tester features an extra-large LCD with dual-backlit colors for instant, day-or-night readings.Red backlight = Non-potable water warning (>40+ ppm) , Green backlight = Safe for direct drinking (<40 ppm) • 【 Long-Lasting Power 】 With an efficient 3V (CR2032) coin cell battery (easy to replace) and smart auto-shutoff, our tester runs 2x longer than standard 1.5V models. Just 1 battery lasts 12+ months—even with daily use! • 【 Durable & Reliable Design 】TDS Meter 4-in-1 Water Tester – Features a tough ABS outer shell with comfy non-slip grips for easy handling. The advanced dual-core processor inside gives you fast, ultra-precise readings every time • 【 Product List 】Body x1, Built-in Battery x1, Operation Manual x1, Outer Packaging x1