3. The baud rate can be set by yourself; The common protocol has an automatic upload function, and the upload rate can be set by yourself 2. Standard MODBUS protocol and common protocol are integrated, users can choose communication protocol by themselves; 1. Industrial grade product, high progress SHT20 temperature and humidity sensor, RS485 communication; 4. The use of industrial-grade chips and high- SHT20 temperature and humidity sensors excellent reliability, high and interchangeability of the product. Using RS485 hardware interface (with thunder protection design),the protocol layer is compatible with the standard industrial Modbus-Rtu protocol. This product integrates MODBUS protocol and common protocol. Users can choose communication protocol by themselves. Common protocol has automatic upload function., Weight: 0.07054792384 pounds, Manufacturer: Hipzeepo