• The large number display screen is clear at a glance. • Quick measurement within 3 seconds. • Humanized design, durable quality, easy to carry. • Four modes: one-key switching, sensitive detection, accurate measurement of different types of readings. Four Functions: • Measure the current ambient light intensity: low, low+, mid, mid+, high, high+ • Measure soil moisture content: dry, dry+, moist, wet • Measure soil temperature: range -9°C to +50°C (16°F to 122°F) • Measure soil pH value: range 3.5 to 9.0 Usage: • Step 1: Switch to the desired mode – moisture/temperature/light or pH/light. • Step 2: Insert the probe into 2-4 inches of soil. • Step 3: Read the moisture/pH/light/temperature level on the display within 3 seconds. • Step 4: After each use, remove the probe from the soil and clean it thoroughly. Specifications: • Size: 340 x 63 x 36mm • Probe length: 195mm • Battery: 9V battery (not included) Notes: • Not intended for liquid testing; for soil testing only. • If the screen displays only green without numbers, the battery is low and needs replacement. • If the soil is extremely dry, lightly moisten it before testing. • For very dry or compacted soil, add a small amount of water and wait 30 minutes before testing. Package Included: • 1 x Soil Tester