Pandawill Soil Moisture Meter, Digital 4 in 1 Tester Monitor Measure Soil Moisture, Temperature, PH Value and Sunlight Intensity for Indoor/Outdoor Garden Farm Lawn Flower Plant4 in 1 You can measure soil moisture(5 levels), temperature(16F to 122F), PH Value(3. 5 to 9. 0) and sunlight intensity(9 levels). Easy to operate You only need to plug one 9V battery, remove the protective cover on the probe, turn it on and insert the probe straight up and down softly. Precise accuracy Fast response time to get precise measurement, easy to read the soil moisture, temperature, ph and sunlight intensity. Large and green backlight LCD