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. Key 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 capability 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 monitoring of temperature and humidity conditions, suitable for indoor and outdoor measurement and environmental monitoring in greenhouses, warehouses, industrial facilities, computer rooms, laboratories, and more Specifications: Model: WTR10-E Material: Plastic Power Supply Range: DC 9V to 40V (non-polar, reverse polarity protected) Power Consumption: < 0.1W Temperature Measurement Range: -40°C to 85°C Humidity Measurement Range: 0 to 100% RH Measurement Accuracy and Resolution: - Temperature: ±0.3°C, 0.01°C - Humidity: ±3.0% RH, 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 Byte Format: 8 Data Bits, 1 Stop Bit, No Parity Communication Protocol: MODBUS-RTU Communication Address: Configurable from 1 to 253 (via 6-digit dial switch), default 1 Installation Method: 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 sites, power plants, nuclear plants, substations, agricultural research facilities, health and epidemic prevention stations, and environmental protection departments. Item Dimensions: 65 x 45 x 29 mm (2.56 x 1.77 x 1.14 inches) Item Weight: 40g (1.41 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 Contents: 1 x Temperature and Humidity Transmitter 1 x User Manual