-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 provides more stable performance in high humidity environments. -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 rooms, warehouses, buildings and automatic control applications. Humidity probe monitor measuring range -40°C to 125°C, high precision, DC 5-24V, suitable for HVAC, farms, industrial environments. Color: grey Material: ABS Package Contents: 1 x Temperature and humidity sensor Only 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 to appear slightly different from the actual product. Measurement error allowance is +/- 1-3 cm.