Multifunctional Soil pH Meter: Upgraded probe can quickly measure the pH, moisture and temperature in the soil. What's more, our soil tester come with the light intensity meter function, the intensity of light directly affects the growth of plants. Backlight Digital Display: Sunlight-readable green backlight display make it easy to read and be used in multiple locations such as your farm, greenhouse, indoor balcony at dark. Single Probe: Less hurt for plant roots. Warm prompt: This soil tester can't be applied to test pH if the soil is too dry or hard, so please water it before testing. Easy to Use: Just simply insert the sensor probe into the soil about 2-5 inches, press switch to test moisture, pH, temperature, light. Automatic Shut Off: Plant moisture meter will auto-off without operation after 5 mins, increase working life. Powered by 9v battery.（Included)