Portable Digital 4-in-1 Water Quality Tester Pen

Advanced Multi-Parameter Testing
– Simultaneously measures temperature, EC (electrical conductivity), TDS (total dissolved solids), and pH levels with high-precision sensors for instant, reliable results.
Premium Build & Durability
– Features a corrosion-resistant titanium alloy probe and reinforced ABS casing for long-term use in harsh environments, including pools, aquariums, and outdoor fieldwork.
User-Friendly Design
– Compact, lightweight pen-style body with a large LCD screen for clear readings and one-button calibration. Ideal for home, lab, hydroponics, and industrial water quality checks.
Wide Application Range
– Perfect for testing drinking water, tap water, swimming pools, or agricultural irrigation to ensure safety and compliance with health standards.
Global Wholesale Advantage
– Direct factory pricing with bulk discounts, ensuring unbeatable value for distributors and large-scale buyers.