Multi-Functional Water Quality Tester Pen – 7-in-1 Precision Tool

Ultra-Precise Measurements
Professional-grade sensor delivers instant, accurate readings for pH, TDS, conductivity, salinity, temperature, specific gravity, and ORP—all in one compact pen.
Durable & Portable Design
High-quality ABS housing with reinforced tips for long-lasting durability. Slim, lightweight (only 60g) for easy carry to pools, aquariums, labs, or hydroponic farms.
One-Touch Calibration
Auto-calibration function ensures consistent accuracy. Features a large backlit LCD for clear visibility in low-light conditions.
Wide Application Scenarios
Ideal for testing drinking water, aquariums, swimming pools, industrial water systems, and agricultural hydroponics. Essential for researchers, brewers, and eco-conscious homeowners.
Global Wholesale Advantage
Direct factory pricing with bulk discounts. Rigorous QC ensures every unit meets international standards. Fast shipping worldwide.