1. power: 2W 2. Rich interface: standard RS-232, TTL, ... channels according to requirements of customersBaud rate: 1,200, 2,400, 4,800, 9,600, 19,200bpsInterface format: ... x 45 x 19mm (without antenna port)Applications: Automatic meter reading (AMR) and home automationSupervisory control and data acquisition ... network and data collection system YS-C30M 2-3km range data transceiver ,rf module ,high speed