Very Easy to operate, quick testing, obvious results. Simplest and most affordable way to test water quality. Test your drinking water with ease. The electronic color tester is a practical tool that visually demonstrates differences between high TDS and low TDS water. Features: - Easy to operate and delivers quick, clear results - Provides a simple method for testing water quality - Helps assess water purity level, allowing users to observe the condition of drinking water - High precision design Testing Methods: 1. Prepare two transparent cups with 100 to 150 ml of water each – one with tap water and one with RO water. 2. Insert the metal electrodes into both cups. 3. Turn the device on and begin the test. 4. After 30 to 60 seconds, turn off the device and remove the electrodes. Caution: Avoid electric shock. Do not touch the electrodes when the device is plugged in. Testing Analysis Results: - Black: Indicates presence of metals - Yellow: Indicates dissolved acids, fluoride, and organic matter - Green: Indicates substances such as arsenic, mercury, lead, copper, and sodium - Blue: Indicates contaminants like bacteria, viruses, carcinogens, chemical fertilizers, and pesticides - Red: Indicates iron, rust, and bacteria - White: Indicates lead, zinc, mercury, and inorganic particles Specifications: - Plug type: EU Plug - Voltage: 220V - Power cord length: 85 cm - Electrode length: 7 cm - Device size: 10.2 x 3.7 cm - Quantity: 1 piece Note: 1. Conversion: 1 cm = 10 mm = 0.39 inch 2. Please allow 0–3 cm measurement deviation due to manual measuring. 3. The actual product color may vary slightly due to monitor display differences. No retail packaging included. Package Contents: 1 x Water Quality Testing Device