RS485 Temperature and Humidity Sensor Modbus RTU

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1. Device address: What is the default address, how can it be changed?  --> default is 1, you can change address by PC software.
2. Data transfer rate (Baud Rate)  --> default 9600bps,  4800/9600/14400/19200/38400/56000/57600/115200bps can be set by PC software.
3. Number of stop bits  --> 1 bit
4. Number of data bits  --> 8 bit
5. Parity  --> None
6. Transfer type: RTU or ASCII    -->RTU
7. Bus type: I use 4 wires: RS-485  --> RS485 A and B
8. Timeouts and delays: which are preferable for it?  you can use modbus pull to test it.

here is PC software download: 
  RS485-Temperature-PC-software.zip (Size: 4.08 MB / Downloads: 48)