-02 temperature and humidity transmitter is designed based on -485 communication interface, compatible with standard Modbus-RTU protocol, and can be connected to Modbus network to measure and monitor temperature and humidity.-02 sensitive element adopts SHT3X, a newly designed CMOSens chip, an improved capacitive humidity sensor element and a standard bandgap temperature sensor element, whose performance has been greatly improved and even exceeds the reliability level of the previous generation of sensors (SHT1x and SHT7x). It makes its performance more stable in high humidity environment.-02 adopts the address setting method of dip switch, avoiding the need to set the address in advance with the host computer, which is simple, convenient and easy to maintain and replace.-02 has excellent long-term stability, low hysteresis, low power consumption, strong resistance to chemical pollution and excellent repeatability. It is an ideal solution for accurately measuring temperature and relative humidity in HVAC, communication room, warehouse building and automatic control applications.Humidity Probe Monitor Measuring Range -40 to 125 High Precision DC 5-24V Suitable for HVAC, Farm, IndustryColour:greyMaterial:ABSPackage Contents:1*Temperature and humidity sensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.