Product Descriptions Technical parameters: pH range: 38pH; Humidity range: 18%; pH accuracy: 0.2pH; Water accuracy: 1%. Ambient temperature: 550C Note: When using the device, be careful not to touch the stone when inserting the electrode. Do not use too much force as this will damage the electrode. Do not combine the instrument and the magnetic material. Do not store it in the ground for more than an hour. Wash the electrode after use. Package content: 1 high precision soil tester. 1. High Accuracy Portable Garden Soil pH Meter Moisture Tester Soil pH is a very important factor for crop quality. Most crops cannot survive in soil that is too basic or too alkaline. Getting the right pH for your crop is extremely important. 2. Easy to use A simple and accurate way to measure the pH and moisture content of different types of soil. It measures pH from 3 to 8, indicating acidity and alkalinity, while humidity is from 1 to 8 is measured. This indicates that the ground is dry or wet. 3. no battery required This item meets strict quality and safety standards. Easy to use and suitable for indoor and outdoor testing. 4. Has many uses Ideal for quick pH and moisture references in vineyards, produce, orchards, agriculture, produce, greenhouses, lawn care, planters, flower pots . 5. Promoting Healthy Plants It secures and maintains the health and quality of your greenery. When you use it, you can know when to water and control the pH of your plants.