TDS meter: 3-in-1 TDS, EC, and Temperature Meter. This professional TDS meter is useful for assessing water purity and fits conveniently in your pocket. It is an accurate and reliable tool ideal for water quality testing, water purification, wastewater regulation, aquaculture, hydroponics, laboratory and scientific testing, pools and spas, ecology testing, water treatment, and more. A suitable soil environment is important for healthy plant growth. Providing proper soil conditions, adequate water, sunlight, and nutrients helps plants thrive. This tester helps you better understand your soil and care for your plants more effectively. It can help prevent common issues such as overwatering, underwatering, planting in areas with insufficient light, and identifying potential soil pH imbalances. pH Meter: How to use? Step 1: Remove the protective cap Step 2: Clean the electrode in distilled water and dry it Step 3: Turn the meter on by pressing the ON/OFF key Step 4: Immerse the pH meter electrode in the solution to be tested Step 5: Stir gently and wait for the display to stabilize Step 6: After use, clean the electrode in distilled water and turn the meter off by pressing the ON/OFF key Product Features: - pH Range: 0.00 - 14.00 - pH Resolution: 0.01 pH - pH Accuracy: ±0.05 pH - Calibration: Two-point automatic calibration - Power Supply: 2 x 1.5V LR44 batteries - Weight: 50 g - Temperature Range: 0.1 - 80.0 °C - Conductivity Range: 0 - 9990 µS/cm - TDS Range: 0 - 9990 ppm - Measurement Accuracy: ±2% - Battery: 1 x 3V CR2032 (included) - Dimensions: 154 x 30 x 14 mm - Material: ABS - Color: Yellow + Blue + Green Package Contents: 1 x pH Meter (yellow) 1 x TDS & EC Meter (blue) 1 x Soil Tester Kit (green) Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is ±1-3 cm.