Wireless fieldbus gateway ELPRO Technologies
MODBUS

105U-G Range

Using fixed frequency radio bands - Europe, Africa, Asia, Australia / NZ.
Covers licensed radio channels in most countries

Check which frequency can be used in your country here
ELPRO has several models featuring all of the popular protocols
105U-G-MD1 Modbus Master, Modbus Slave, DF1 interface
105U-G-PR1 Profibus DP Slave interface
105U-G-PR2 Profibus DP Master interface
105U-G-ET1 Ethernet IP / Modbus TCP / HTTP-FTP-Email
105U-G-M+1 Modbus Plus Slave interface

More specifications...