... ,200/2,400/4,800/9,600/19,200bps selectable Interface baud rate: 1,200/2,400/4,800/9,600 ... ,200bps programmable Frequency band: 433MHz, 450MHz, 470MHz or ISM others Interface: standard RS-232/RS-485/TTL/USB Communication mode: half ... -of-sight range: 2km (BER = 10 to 3 at 9,600bps) 3km (BER = 10 to 3 at 1,200bps) Size: 80 x ...