This  soil moisture sensor can be used to detect moisture, when the soil is dry, the module outputs a high level, whereas when there is moisture, the  output is low. Use this sensor to make an automatic watering system, so that you can  garden plants without people to manage.

Features:

• Operating voltage: 3.3V~5V
• Dual output mode
• Analog output is more accurate
• A fixed bolt hole for easy installation
• With power indicator (red) and digital switching output indicator (green)
• Having LM393 comparator chip, stable

Additional Information