4-in-1 soil ph meter: 2023 latest soil tester, can quickly detect light level, humidity, temperature, pH. Help you easily understand the state of the soil and meet the soil testing needs of various planting sites.Notes: Power supply: 9V battery (product does not include battery) Large LCD backlit display: Large LCD screen with clear font and green backlight function, easy to display and read digital parameters in both daylight and darkness. Convenient and fast reading of test results, accurate data, careful care of your plants. High sensitivity metal probes: Adopted upgraded metal material probe more durable, length 7.7 inches, diameter 0.2 inches, deep into the soil at the same time can effectively reduce the damage to the plant root system, accurate analysis of the state of the soil. (Note: 1. Please remove the protective sleeve before use, 2. Please do not insert the probe into the dry hard soil, otherwise it will damage the probe) Easy operation: You only need to insert the probe more than 4 inches (10 cm) deep into the soil and get the test result in a few seconds. The probe needs to be removed from the soil and wiped clean after use. (The detector should not be inserted into the soil for a long time, it is easy to oxidize and damage the probe) Wide range of applications: Easy to carry, easy to use, suitable for various gardening sites, such as gardens, farms, orchards, greenhouses, indoor and outdoor plants. We are at your 24-hour service any time We also offer 30-day unconditional return and 2-year aftersale service. Welcome to contact us if any problem