4 in 1 Digital Water Quality Tester Pen TDS/EC/PH/Temp

Comprehensive water quality testing in one compact device. This 4-in-1 digital tester pen measures TDS (Total Dissolved Solids), EC (Electrical Conductivity), pH level, and temperature simultaneously. Perfect for aquariums, hydroponics, swimming pools, and drinking water verification. Features a digital LCD display for instant readings and portable design for on-the-go testing. Durable construction ensures reliable performance for both professional and personal use. Get accurate water analysis results in seconds with this essential testing tool.