NIUNIU How to use the four-in-one soil tester Before use, please install the 9V battery, remove the probe cover, press and hold the OFF key for about 5 seconds, and turn off the device. 1. Light Measurement A. Press the ON button to start the machine; B. The light sensor window is aligned with the highest light source; C. The current light intensity will be displayed on the LCD screen; Note: Do not block the light or shadow light sensor Light intensity comparison table low- low low+ nor- nor or not + growth hormone- growth hormone growth hormone+ Very low more slightly normal slightly more High Very 2. PH range measurement A. Place the [PH/] button on the back at the PH position. B. The probe is inserted vertically into the soil and needs to be tested as soon as possible. C. Press the ON button to start the measurement. D. The pH value of the test will be displayed on the LCD screen E. Measure a few times to get the exact value you need. notes: 1. Insert the probe vertically into the edge of the middle plant stem. 2. Please push gently into the soil to avoid damage to the probe. 3. If the soil to be tested is too dry or fertile to measure the correct PH value, the user can sprinkle some water and test again after half an hour PH meter increased acidity neutral Increase alkalinity low 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 High 3. Water measurement Press the [PH /] button B is inserted into the soil as vertically as possible. C Press NO to start measurement D Test soil moisture will be displayed on the LCD screen. 4. Temperature measurement; A When measuring humidity, the soil temperature will be displayed on the LCD screen at the same time. The B [/OFF] key sets the humidity display iso. NOTE: If the user does not insert the probe into the soil, the correct outer space ambient temperature will be displayed. Specifications: 275*58mm Color: yellow Delivery content: 1x soil pH and humidity detector (only the above package contents, no other products)