- 1. This is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. Use this sensor produced an automatic plant waterer device, so that the plants in your garden without people to manage.
- 2. Sensitivity adjustable the blue digital potentiometer adjustment (Figure)
- 3. Operating voltage 3.3V-5V
- 4. Module dual output mode, digital output, analog output more accurate.
- 5. With fixed bolt hole for easy installation
- 6. PCB size: 3cm * 1.6cm
- 7. Power indicator (red) and digital switching output indicator (green)
- 8. Comparator LM393 chip, stable