4-in-1 Water Quality Test Pen, pH/EC/TDS/TEMP Tester for Swimming Pool and Beverage Laboratory

Features: 1. The test pen can measure four parameters: total dissolved solids (TDS), electrical conductivity (EC), pH, and temperature. 2. The test pen offers high performance, fast measurement, high accuracy, and high stability. 3. The water quality test pen features an ergonomic design, is lightweight and portable, and easy to use. 4. Multifunctional detection mode, simple and convenient function switching, and a large LCD screen for easy and clear reading. 5. The water quality tester is suitable for water sources, aquariums, hydroponics, hot springs, swimming pools, and other water systems. Specifications: Item Type: Water Quality Test Pen Material: Plastic Weight: Approx. 155 g / 5.5 oz Battery specifications: 3 x 1.5 V LR44 button cell batteries (batteries not included) Technical specifications: Range: pH: 0.00-14.00 pH EC: 0-19990 µS/cm 0-19.9 mS/cm TDS: 0-19990 ppm 0-19.9 ppt Temperature: 0°C-50°C (32°F-122°F) Resolution: pH: 0.01 pH EC: 1 µS/cm (10 µS/cm (> 1999 µS/cm) 0.1 mS/cm TDS: 1 ppm (10 ppm (> 1999 ppm) 0.1 ppt) Temperature: 0.1°C (0.2°F) Accuracy: pH: ±0.03 pH EC, TDS: ±2% FS Temperature: ±1°C Compensation Temperature range: 0°C-50°C Operating temperature: 0°C-50°C Applicable scenarios: Suitable for water sources, aquariums, hydroponics, hot springs, swimming pools, and other water systems. How to use: After installing the battery, open the cover and place the measuring tip in the liquid to be measured; the value will be displayed instantly. Package list: 1 x Water quality test pen (battery not included) 1 x Manual 1 x Screwdriver 1 x Protective case