... M-215: 1,MTK chipset 2,32 parallel satellite 3,Low power consumption 4,in stock GPS receiver M-215: Overview:The HOLUX M ... GPS):Position : 3.0 M CEP excluding SAVelocity: 0.1M / sec.Interval: 0.1 μs to Sync GPSDGPS ... (EGNOS/WAAS/MSAS):Position:< 2.2 M., Horizontal deviation 95% ... (1time /5 sec.), GPRMC (1time /1 sec.),GPVTG (1 time/1 sec). Optional : GLL, or MTK NMEA ...