Product Name: BZ-121GPS Product Specifications: Chip:u-blox M10050(Ten Generation Chip) Pattern: GPS,GLONASS,BDS,GALILEO,SBAS,QZSS(Default GPS+GLONASS+BDS joint positioning) FLASH:Supported Frequency:GPS L1,GLONASS L1,BDS L1,GALILEO L1,SBAS L1,QZSS L1 Power:5V Size:12x16x4.5mm Interface:PCB Pad Weight:2.2g Antenna:Ultrathin Ceramic Antenna (oil spraying process, prevent scratching and oxidation) Receiving channels:72 search channels Baud rate:115200dps Output Protocol:NMEA / UBLOX (Dual protocol) Output Frequency:1Hz-10Hz. Default 10Hz Speed accuracy:0.05m/s Horizontal Positioning Accuracy: 2D ACC 1.5m(open air) Receiving Sensitivity:Trace-162dBm / Capture -160dBm