5 in 1 Flower Pot Soil Tester PH Detector Moisture/Light/PH/Temperature Specifications: Name: 4 in 1 soil tester (moisture/light/PH/temperature) Product size: about display screen 95*57*27mm/3.74*2.24*1.06in, full length 317mm/12.48in, probe 205mm/8.07in Operating temperature: +5~+40 Power battery: AAA15V batteries Measure the light intensity of the current environment: LOW- LOW LOW + NOR- NOR NOR + HGH- HGH HGH + Measures soil moisture. Measure soil temperature, temperature measurement range: -9+50(16122F), accuracy 1/1F. Measure soil pH, pH value range: 3.5-9.0. Measure soil moisture, percentage of TEM content. How to use this soil tester Step 1: Install the batteries, turn on the tester and select PH or C on the back. Step 2: Insert the probe into the soil about 3-5 inches. Step 3: Adjust the position of the probe until the tester is fixed in the ground for the test. Step 4: Read the humidity/pH/light/temperature test values on the display screen. Choose the pH or on the back according to your needs. Step 5: Remove the probe from the ground and wipe it clean after each use. Packing list: Soil tester*1 (without batteries) Manual * 1