Main features:
Serial UART Logic Level, small form factor, low profile, several connector options, solder edges, low profile internal or external antenna, short range or long range, point-to-point (multipoint, repeater and I/O optional)
Main features:
RS232 or UART Logic Level, optional 20-pin 2 mm header connector, high performance internal antenna or external antenna, long or short range, point-to-point (multipoint, repeater and I/O optional)