Soil temperature and humidity sensor

Description: This moisture sensor uses gold immersion that protects the nickel from oxidation. The gold immersion with nickel non-electrostatic (ENIG) has many advantages compared to traditional (and cheaper) surface coating such as HASL (soldering), including excellent surface leveling (especially useful for PCBs with large BGA packages), good oxidation resistance, and usability for untreated contact surfaces like membrane switches and contact points. This moisture sensor can read the amount of moisture in the surrounding soil. It is a low-tech sensor, but ideal for monitoring an urban garden or your pet plant's water level. This is an essential tool for a connected garden! This moisture sensor can be used to detect soil moisture or judge whether there is water around the sensor, allowing the plants in your garden to lend a helping hand. It can be very useful, just insert it into the soil and then read. With this sensor, it will be possible to make the plant remind you: Hello, I am thirsty now, please give me some water. This moisture sensor uses two sensors to pass current through the soil, then reads that resistance to determine the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts poorly (more resistance). It will be helpful to remind you to water your indoor plants or monitor soil moisture in your garden. The IO Expansion Shield is the perfect shield for connecting this sensor to Arduino. This item has low power consumption and high sensitivity, which are the main features of this device. It can be compatible with Arduino UNO, Arduino mega2560, Arduino ADK, etc. Features: 1. working voltage: 5V 2. working current: less than 20mA 3. interface: analog 4. detection depth: 37mm 5. operating temperature: 10°C to 30°C 6. weight: 3 grams 7. size: 63 x 20 x 8 mm 8. Arduino compatible interface 9. low power consumption 10. high sensitivity 11. output voltage signal: 0 to 4.2V Pin definition: "S" stands for signal input, "+" stands for power source, "-" stands for GND Applications: 1. vegetable gardening 2. water sensor