Water Quality Tester Pen Type Cond/TDS/Temp Meter

Compact pen-style water quality meter for instant testing of conductivity, TDS (Total Dissolved Solids), and temperature. Ideal for aquariums, hydroponics, pools, and drinking water verification. Features a digital LCD display with easy-to-read readings and durable stainless steel probe. Portable design fits easily in pockets or tool kits. Powered by replaceable batteries for convenient field use. Smart Sensor brand ensures reliable performance for both professional and household applications.