Features: Internal self-calibration, no calibration required.High reliability and long-term stability. The soil temperature and humidity sensor is digital output with a resolution of up to 14 bits. The combination of temperature and humidity is convenient for dew point measurement. Product structure exquisite, I2C output, suitable for on-site application and product integration. Because the brass structure can be used in high temperature and high humidity environment, the temperature resistance is higher than the plastic shell. The use of aviation joint provides better dust-proof, anti-rain-proof,in customer maintenance can be directly replaced probe, do not need to repeat wiring. Application range: computer room monitoring, HVAC, weather station, warehouse, construction site, concrete test block testing, agricultural greenhouse, flower nursery, etc. Specification: Item Type:Soil Sensor Working Current:80%, may result in temporary signal drift (after 60 hours drift +3% RH). When returning to normal After the working conditions, the sensor will slowly return to the calibration state. Prolonged use under abnormal conditions will accelerate the aging of the product. Humidity sensors are not ordinary electronic components and require careful protection. This must be taken seriously by users. Prolonged exposure to high concentrations of chemical vapour will cause the sensor reading to drift.