WTR10-E Temperature and Humidity Transmitter features a high-precision digital sensor with reliable performance, high accuracy, low annual drift, and fast response speed. It uses RS485 bus technology and the industrial-standard MODBUS-RTU communication protocol for online temperature and humidity monitoring.Key Features: 1. High-precision digital temperature and humidity sensor with high sensitivity, excellent stability, and full-range temperature compensation 2. Microcontroller unit (MCU) based on STC’s low-power, high-reliability chips for stable processing performance 3. Standard RS485 output supports long-distance communication 4. Complies with industrial MODBUS-RTU communication protocol standards 5. Real-time temperature and humidity detection; suitable for indoor/outdoor monitoring in warehouses, laboratories, computer rooms, industrial facilities, greenhouses, and more Specifications: Model: WTR10-E Housing Material: Plastic Power Supply: DC 9V–40V (polarity-insensitive) Power Consumption: < 0.1 W Temperature Range: -40°C to +85°C Humidity Range: 0–100% RH Accuracy & Resolution: - Temperature: ±0.3°C, 0.01°C resolution - Humidity: ±3.0% RH, 0.024% RH resolution Response Time: 2 seconds Communication Interface: RS485 Baud Rate Options: 2400, 4800, 9600, 19200 bps (set via DIP switch; default: 9600) Data Format: 8 data bits, 1 stop bit, no parity Communication Protocol: MODBUS-RTU Device Address Range: 1–253 (set via DIP switch; default: 1) Mounting: DIN rail installation Applications: Industrial environments, telecom base stations, warehouses, laboratories, factories, greenhouses, data centers, museums, archives, libraries, hospitals, hotels, residential buildings, petrochemical facilities, power plants, substations, agricultural research sites, and environmental monitoring stations. Dimensions (Unit): 65 × 45 × 29 mm (2.56 × 1.77 × 1.14 in) Weight (Unit): 40 g (1.41 oz) Package Dimensions: 13 × 13 × 3 cm (5.12 × 5.12 × 1.18 in) Package Weight: 45 g (1.59 oz) Package Includes: 1 × Temperature and Humidity Transmitter 1 × User Manual