High precision, suitable for testing soil temperature and humidity. It is easy to use, just insert it into the soil, no need to remove it, and it can be tested for a long time. The perfect tool for caring for indoor and garden plants. Equipped with a probe and LCD display for easy operation and reading. Made of high quality ABS and stainless steel for durability. Size: 290 × 50 × 38 mm Weight: 75g This instrument is a good helper for gardening. It can test soil pH value (acidity and alkalinity), soil moisture and light intensity without batteries. Please note that the probe should be inserted into the soil 2/3 of the depth (10cm has been reached) for accurate measurement. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.