4-in-1 Water Quality Tester Pen – Ultra-Precise & Portable

Multi-Parameter Testing
Simultaneously measures Temperature, Conductivity, TDS, and pH with lab-grade accuracy for comprehensive water quality analysis. Ideal for drinking water, aquariums, hydroponics, and industrial use.
Premium Mesh Upper Material
Durable mesh casing ensures shock resistance and enhanced grip, while maintaining a lightweight, pen-style design for on-the-go testing.
One-Click Calibration & Auto-Off
Features simple calibration with pH buffer solutions and automatic shutdown to conserve battery life during field or home use.
High-Resolution LCD Display
Clear, backlit screen delivers instant, easy-to-read results even in low-light conditions.
Global Wholesale Advantage
Direct bulk sourcing guarantees unbeatable pricing for distributors, labs, and eco-conscious retailers.