China Beitian GPS Receiver with Module Antenna 3.0m 4 Cable: Red Vcc, Green Rx, White Tx, Black Gnd, 5.0V RS-232 Level BS-573n, Find details about China GPS Receiver, Marine GPS Receiver from Beitian GPS Receiver with Module Antenna 3.0m 4 Cable: Red Vcc, Green Rx, White Tx, Black Gnd, 5.0V RS-232 Level BS-573n