3 in 1 Function - Cookmaster soil tester kit can measure soil moisture, pH value and sunlight levels. Compact and Portable - Ideal soil test tool kit for home plants, garden, lawn and farm. Design for indoor outdoor use. Easy to use - Simply push the probes into the soil and you'll get your reading. Help your plants grow healthy and strong. No Batteries Required - Simply stick the sensor probe into the soil area you want to check and it reads your water level instantly. Notices - Our Soil Moisture Sensor Meter is designed only for soil testing, do not put it into water for testing. Keep it away from rocks and extremely hard soil to avoid damaging it.