[SPEED & ACCURACY] Features the latest sensor and probe technology to deliver fast and accurate readings in seconds. Provides instant results with just a 1-inch water sample. Equipped with a large backlit LCD screen for easy reading in any lighting condition. [EASY TO USE] This 3-in-1 handheld digital TDS meter offers a simple and reliable way to check water quality instantly. Designed for everyday use to help monitor drinking water safety. Compact and portable with a protective case included, making it convenient to carry and store. [MULTIPURPOSE USE] Ideal for testing water quality in various applications including drinking water, reverse osmosis (RO) systems, deionization (DI) systems, aquariums, hydroponics (nutrient testing), pools, spas, and general household or industrial water monitoring. [THREE-IN-ONE MEASUREMENTS] Combines TDS, EC, and temperature measurement functions in a single device. Offers convenience and efficiency by meeting multiple testing needs with one tool. Helps support water safety and quality control. [Note: The EPA recommends that TDS levels in drinking water should be below 500 ppm.] [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to extend battery life. Includes a hold function to lock readings for easier viewing and recording. Color: White Material: Plastic Package Contents: 1 x Water Quality Tester (case included) – Only items listed are included; additional accessories or products shown are not part of the package. Note: Lighting effects and display settings may cause slight variations between the product color in images and the actual item. Measurement accuracy may vary within a tolerance of +/- 1-3 cm.