4-IN-1 Plant Soil Test Kit: Test soil moisture (5 levels), pH (3.5-9.0,12 levels), sunlight intensity (9 levels) and temperature (-9C to 50C; 16F - 122F), allowing you to easily know the condition of the plant. (NOTE: Do not use it to directly test pure water or other liquids.)Large Backlit LCD Display: This soil tester uses a large LCD screen to easily display a variety of readings. A green backlight allows you to read parameters in dark conditions.CONVENIENT OPERATION: Plug in a 9V battery, remove the probe protection cover and turn it on, insert the probe from top to bottom gently, the LCD screen will display the four indexes of the detected area.Powered by a 9V battery (included). An auto-off function helps save battery lifeIndoor and Outdoor Design: Ideal tool for testing soil conditions (moisture/light/pH) of fruits, flowers, vegetables, shrubs, etc. Lightweight and portable design, convenient for indoor and outdoor use.PLANT CARE ASSISTANT: This moisture meter saves time and energy with high efficiency, a great tool for your garden and plants. Know when to water, adjust pH or change lighting for your garden, flowers and plants, both indoor and outdoor.