Please install the battery and remove the protective cover of the probe before use 1. Light measurement ; ; ; ; A. Press the ON button to turn on the instrument ; ; ; ; B. Align the light sensor window of the highest spot light source. ; ; ; ; C. The current light intensity will be displayed on the LCD screen. ; ; ; ;Tip: Do not block the light or cast shadows on the light sensor 2. PH range measurement ; ; ; ; A. Press the [PH/TEMP] button to back pH value ; ; ; ; B. Insert the probe vertically into the ground, the test should be done as soon as possible. Do not insert the probe too deeply and damage the roots of the plant. ; ; ; ; C. Press the [ON] button to start the measurement. ; ; ; ; D. The pH value of the test will be displayed on the LCD ; ; ; ; E. Measure multiple times to get the exact value you need. ; ; ; Advice : 1. Insert the probe vertically, at the edge of the plant stem in the middle. ; ; ; ; ; ; ; ; ; ;2. Please push gently into the soil survey to avoid damaging the probe. ; ; ; ; ; ; ; ; ; ;3. If the measured soil is too dry or fertile to measure the accurate pH value, the user can sprinkle water and measure again after half an hour 3. Humidity measurement ; ; ; ;A Press the [PH/TEMP] button on the back of the ; ; ; ;B Insert into the ground as vertically as possible. Do not insert the probe too deeply and damage the roots of the plant. ; ; ; ;C Press the NO key to start the measurement ; ; ; ;D The soil moisture value of the test will be displayed on the LCD screen. ; ; ; ;E Measure several times to get the exact value you need. 4. Temperature measurement; ; ; ; A When measuring moisture, the soil moisture value is displayed on the LCD at the same time. ; ; ; B Press the [/ OFF] key to set the humidity display to or . ; ; ;Advice : If the user does not insert the probe into the ground, the display will show the exact ambient temperature of the outdoor space. Note: The data is all manual measurement, please allow error by 1 - 3cm, due to the light and display difference, there will be a certain color difference, depending on the physical object received Shipping Quantity: (according to the main image)