General description This 2Pcs Digital TDS Tester is a multifunctional device designed to measure TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature in various water sources. It features a large backlit LCD display for easy reading and is ideal for monitoring drinking water quality, hydroponics, aquariums, swimming pools, and more. Please note that this product is not suitable for pH testing. Technical specifications Brand: COOCHEER Material: ABS plastic/metal alloy probe Weight: 160g Battery type: 3V button cell (CR2032) TDS measurement range: 0-9990 ppm Conductivity measurement range: 0-9990 µS/cm Temperature measurement range: 0.1°C to 80.0°C Accuracy: ± 2 degrees Celsius Temperature display: Fahrenheit (32-176°F) Usage Suitable for testing water purifiers and filters Ideal for swimming pools and SPAs Perfect for aquariums Useful for hydroponic plants Can be used in the water treatment and drinking water industries Applicable for personal travel and field