Standard RS485 Interface Radio Modem (SRWF-SmartRF RS485)

Radio data modem with aluminum alloy housing
Can be built-in kinds of radio modules
Selectable data rate, frequency band, output power to meet various requirements
Standard RS232 interface, easy to use, "play and plug"
High performance and cost resonable
Supported P2P and P2M network topology
CE/FCC compliant

Specifications:
Serial port: Standard RS485
Frequency band: 403, 433, 470, 868, and 915MHz optional
Output power: Selectable 10, 50, 100, 500mW and 1W
Communication: Semi-duplex
Modulation mode: GFSK/FSK
Channels: 8 (default), 16 or 32 (customized)
Data rate: Selectable 1, 200 to 19, 200bps
Dimensions: 79 x 46 x 19mm
RF line-of-sight range: 300 to 4, 500m
Supply voltage: 5V DC
Low power consumption
Operating temperature: -25 to 75° C