1Internal self-calibration, no calibration required.High reliability and long-term stability. 2The combination of temperature and humidity is convenient for dew point measurement. 3Product structure exquisite, I2C output, suitable for on-site application and product integration. 4Because the brass structure can be used in high temperature and high humidity environment, the temperature resistance is higher than the plastic shell. 5The 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.