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 sensor design. Features: 1. High-precision digital temperature and humidity sensor with high sensitivity, excellent stability, and full temperature automatic compensation 2. MCU utilizes STC professional-grade, high-quality, low-power chips to ensure processing power and system 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. Enables easy control of environmental changes, 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: DC9V~40V (No polarity distinction, reverse polarity allowed) Power Consumption: Less than 0.1W Temperature Measuring Range: -40°C to 85°C Humidity Measuring Range: 0% to 100% RH Measurement Accuracy and Resolution: - Temperature: ±0.3°C, Resolution: 0.01°C - Humidity: ±3.0% RH, Resolution: 0.024% RH Response Time: 2 seconds Communication Output Interface: RS485 Serial Baud Rate: 2400, 4800, 9600, 19200 (configurable 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 (configurable via six-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, public health, and environmental protection departments Item Size: 65 x 45 x 29 mm / 2.56 x 1.77 x 1.14 inches Item Weight: 40g / 1.41oz Package Size: 13 x 13 x 3 cm / 5.12 x 5.12 x 1.18 inches Package Weight: 45g / 1.59oz Package List: 1 x Temperature and Humidity Transmitter 1 x User Manual