WTR10-E temperature and humidity transmitter features a high-precision digital sensor with reliable performance, high accuracy, low annual drift, and fast response speed. Equipped with RS485 bus technology and based on the industrial MODBUS-RTU protocol, it enables online monitoring of temperature and humidity in various environments. Features: 1. High-precision digital temperature and humidity sensor with high sensitivity, good stability, and full temperature automatic compensation 2. MCU uses STC's professional high-quality low-power chips to ensure processing power and stability 3. Standard RS485 output supports long-distance communication 4. Supports widely used MODBUS-RTU communication protocol in industrial applications 5. Real-time monitoring of temperature and humidity conditions; suitable for indoor and outdoor measurement and monitoring in greenhouses, warehouses, industrial sites, computer rooms, laboratories, and more Specifications: Model: WTR10-E Material: Plastic Power Supply Range: DC 9V40V (reverse polarity protection) Power Consumption: Less than 0.1W Temperature Measurement Range: -40C to 85C Humidity Measurement Range: 0100% RH Measurement Accuracy and Resolution: - Temperature: 0.3C, Resolution: 0.01C - Humidity: 3.0% RH, Resolution: 0.024% RH Response Time: 2 seconds Communication Output Interface: RS485 Baud Rate: 2400, 4800, 9600, 19200 (user-selectable via two-digit dial switch; default 9600) Data Format: 8 Data Bits, 1 Stop Bit, No Parity Communication Protocol: MODBUS-RTU Address Setting: 1253 (set via 6-digit dial switch; default 1) Installation Method: DIN Rail Mounting Applications: Suitable for temperature and humidity monitoring in industrial environments, telecommunications base stations, warehouses, laboratories, factories, production workshops, agricultural greenhouses, computer rooms, museums, archives, libraries, hospitals, hotels, residential areas, petrochemical facilities, power plants, nuclear plants, substations, agricultural research stations, and environmental protection agencies. Product Dimensions: 65 x 45 x 29 mm (2.56 x 1.77 x 1.14 inches) Product Weight: 40g (1.41 oz) Package Dimensions: 13 x 13 x 3 cm (5.12 x 5.12 x 1.18 inches) Package Weight: 45g (1.59 oz) Package Includes: 1 x Temperature and Humidity Transmitter 1 x User Manual