Product Technical parameters: pH range: 3-8 pH; Humidity range: 1-8%; pH accuracy: 0.2 pH; Water accuracy: 1%. Ambient temperature: 5-50 C Note: When using the device, be careful not to touch the stone when inserting the electrode. Do not apply too much force as this may damage the electrode. Do not store the device with magnetic materials. Avoid keeping it on the floor for more than 1 hour. Wash the electrode after use. Package Including 1 x high-precision floor tester 1. Portable high-precision garden soil pH meter moisture tester The pH of the soil is a vital factor for crop quality. Most plants cannot thrive in soil that is too acidic or too alkaline. Achieving the correct pH for your crops is critically important. 2. Easy to use This device provides an easy and accurate method to measure the pH and moisture content of various soil types. It measures pH from 3 to 8, indicating acidity and alkalinity, while humidity levels are measured from 1 to 8, indicating whether the soil is dry or wet. 3. No battery required This item meets strict quality and safety standards. It is easy to use and suitable for indoor and outdoor testing. 4. Many applications Perfect for quick pH and moisture checks in vineyards, vegetable gardens, orchards, agriculture, greenhouses, lawn care, garden planters, and flower pots. 5. Promotes healthy plants It helps secure and maintain the health and quality of your plants. With this tester, you can determine when to water and monitor the pH levels for your plants.