7-in-1 Digital Water Quality Test Pen – Precision & Convenience
High-precision sensor measures pH, TDS, EC, temperature, salinity, specific gravity (SG), and ORP in seconds with ±0.01 accuracy. Durable titanium alloy probe resists corrosion for long-term reliability. Compact, waterproof design (IP67) for on-the-go testing—ideal for aquariums, hydroponics, pools, drinking water, and lab use. Auto-calibration ensures consistent results. Backlit LCD displays real-time data clearly. Includes replaceable batteries and a protective cap. Bulk order discounts available—global wholesale pricing. Trusted by professionals for its lab-grade performance and rugged construction. Simplify water analysis with one tool.