-02 temperature and humidity transmitter is designed based on RS-485 communication interface, compatible with standard Modbus-RTU protocol, and can be connected to Modbus network to measure and monitor temperature and humidity. The -02 sensor adopts the SHT3X, a newly designed CMOSens chip, featuring an improved capacitive humidity sensor element and a standard bandgap temperature sensor element, delivering significantly enhanced performance and exceeding the reliability of previous generation sensors (SHT1x and SHT7x). This ensures stable operation in high humidity environments. The -02 uses a dip switch for address setting, eliminating the need for host computer configuration, making it simple, convenient, and easy to maintain or replace. It offers excellent long-term stability, low hysteresis, low power consumption, strong resistance to chemical contamination, and superior repeatability. It is an ideal solution for accurate measurement of temperature and relative humidity in HVAC, communication rooms, warehouses, buildings, and automatic control applications. Humidity Probe Monitor Measuring Range: -40°C to 125°C High Precision Operating Voltage: DC 5-24V Suitable for HVAC, farms, and industrial environments Color: Grey Material: ABS Package Contents: 1 x Temperature and Humidity Sensor Only the above package content is included; other items are not included. Note: Light reflection and different display settings may cause slight color variations between the product image and the actual item. Measurement error allowance: +/- 1-3 cm.