ขาย Soil Moisture Hygrometer Detection Humidity Sensor Module โมดูลวัดความชื้นในดิน ราคาที่ดีที่สุด

Features: - 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. - Sensitivity adjustable the blue digital potentiometer adjustment (Figure). - Module dual output mode, digital output, analog output more accurate. - With fixed bolt hole for easy installation. - Power indicator (red) and digital switching output indicator (green). - Comparator LM393 chip, stable. Specifications: VCC: 3.3V - 5V GND: GND DO: digital output interface (0 and 1) AO: Analog Output Interface Operating voltage 3.3V-5V PCB Size: approx. 3.2 x 1.4cm Sensor size: approx. 65 x 20 x 8 mm