Precision TDS-M2 Water Quality Testing Pen – Essential Tool for Aquarium & Pool Maintenance
Accurate & Instant TDS Readings – High-sensitivity sensor delivers reliable measurements (0-9990 ppm) with ±2% accuracy, ensuring optimal water purity for aquatic life or swimming safety. Durable & Portable Design – Aerospace-grade ABS casing with anti-slip grip; compact pen-style body (5.6” length) fits pockets or toolkits for on-the-go testing. Auto-Calibration & Temperature Compensation – Built-in advanced chip automatically adjusts to 32-140°F (0-60°C) for consistent results in varying environments. Multi-Scene Application – Ideal for freshwater aquariums, hydroponics, pools, or RO-filtered drinking water. Includes battery (up to 1,000 tests) and protective cap. Budget-Friendly Bulk Supply – Wholesale pricing for distributors, bulk orders available with global logistics support.