[SPEED & ACCURACY] Features an advanced sensor and probe for fast, accurate readings—results in seconds, even in just 1 inch of water. Includes a large backlit LCD for easy reading. [EASY TO USE] This handheld 3-in-1 TDS meter provides instant water quality measurements. Designed for convenient, on-the-go monitoring of drinking water quality. Compact design includes a protective case for portability. [MULTIPURPOSE USE] Ideal for testing drinking water, reverse osmosis and deionized water systems, aquariums, hydroponics (nutrient solutions), pools, spas, and commercial or industrial applications. [THREE-IN-ONE MEASUREMENTS] Measures TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature in a single device—saving time and cost while supporting water safety. [Note: The U.S. EPA recommends TDS levels in drinking water remain below 500 ppm.] [AUTO-OFF & HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to conserve battery life. Hold function freezes the reading for easy viewing and recording. Color: White Material: Plastic Package Contents: 1 x Water Quality Tester Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 ppm (for TDS).