Stable performance 72 search channels Made of high-quality materials Easy to use Product name: BZ-251 GPS Chip: M10 (10th generation chip) Frequency: GPS L1GLONASS L1BDS B1GALILEO E1SBAS L1QZSS L1 Power supply: 5V Receiving channel: 72 search channels Compass: QMC5883 Baud rate: 115200DPS Output protocol: NMEAUBLOX (dual protocol) Output frequency: 1HZ-10HZ, default 10HZ Speed accuracy: 0.05M/S Horizontal positioning accuracy: 2DACC1.5M (open air) Receiving sensitivity: trace -162DBM Capture-160DBM Altitude: 50000M Speed: 500M/S Acceleration: 4G (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 1 x GPS Module 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.