WTR10-E temperature and humidity transmitter adopts high precision digital from , with reliable performance, high precision, small annual drift and fast response speed. RS485 bus technology, based on industrial MODBUS-RTU protocol, realizes low-temperature temperature and humidity status online monitoring. Practical integrated sensor Features: 1. High-precision digital temperature and humidity sensor , high sensitivity , good stability , full temperature automatic compensation 2. MCU uses STC"s professional leading high-quality low-power chips to ensure processing power and stability 3. Standard RS485 output , can achieve long-distance communication 4. Various standards for the MODBUS-RTU communication protocol are used in the industrial field 5. Real time detection of temperature and humidity conditions. Easy to control temperature and humidity changes, achieve indoor and outdoor temperature and humidity measurement, and monitor temperature and humidity in vegetable gardens, warehouses, industrial sites, computer rooms, laboratories, etc. Specifications: Model: WTR10-E Material: Plastic Power Supply Range: DC9V~40V (No positive and negative polarity distinguish, can be reversed polarity) Power: less than 0.1W Temperature Measuring Range: -40 celsius ~ 85 celsius Humidity Measuring Range: 0 ~ 100percent RH Measuring Accuracy and Resolution: Temperature: +/-0.3 celsius , 0.01 celsius Humidity: +/-3.0percent RH, 0.024RH Response Time: 2s Communication Output Interface: RS485 Serial Baud Rate: 2400, 4800, 9600,19200 customize by yourself (Two digits dial switch), the default 9600 Byte Format: 8 Data Bits, 1 Stop Bit, No need to check Communication Protocol: Mobus-RTU Communication address can be set: 1~253 (6 digits dial switch), the default 1 Installation Method: Rail Installation Wide Applications: Temperature and humidity monitoring for industrial field, telecommunication base stations, warehouses, laboratories, factories, production workshops, agriculture greenhouse, computer room, museum, archives, library tube, hospitals, hotels, living quarters, petrochemical bases, power plants, nuclear power plants, substations, agricultural research base, health and epidemic prevention station environmental protection departments. Item Size: 65 * 45 * 29 mm / 2.56 * 1.77 * 1.14 inch Item Weight: 40g / 1.41oz Package Size: 13 * 13 * 3 cm / 5.12 * 5.12 * 1.18 inch Package Weight: 45g / 1.59oz Package List: 1 * Temperature Humidity Transmitter 1 * User Manual