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. Practical integrated design for stable operation.Features: 1. High-precision digital temperature and humidity sensor with high sensitivity, excellent stability, and full temperature automatic compensation 2. MCU utilizes STC's professional high-quality low-power chips to ensure processing power and system stability 3. Standard RS485 output supports long-distance communication 4. Compatible with widely used MODBUS-RTU communication protocol in industrial applications 5. Real-time detection of temperature and humidity conditions; suitable for indoor and outdoor measurement and monitoring in greenhouses, warehouses, industrial sites, computer rooms, laboratories, and similar environments Specifications: Model: WTR10-E Material: Plastic Power Supply Range: DC9V~40V (polarity insensitive) Power Consumption: Less than 0.1W Temperature Measuring Range: -40C to 85C Humidity Measuring Range: 0% to 100% RH Measurement Accuracy and Resolution: - Temperature: 0.3C, 0.01C resolution - Humidity: 3.0% RH, 0.024% RH resolution 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: 1 to 253 (set via 6-digit dial switch; default 1) Installation Method: Rail mount 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, health and epidemic prevention centers, and environmental protection departments.Item Dimensions: 65 x 45 x 29 mm / 2.56 x 1.77 x 1.14 inches Item Weight: 40g / 1.41oz Package Dimensions: 13 x 13 x 3 cm / 5.12 x 5.12 x 1.18 inches Package Weight: 45g / 1.59oz Package Includes: 1 x Temperature and Humidity Transmitter 1 x User Manual