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BZGNSS BZ-251 FPV GPS Module - Dual Protocol M10 Drone GPS for RC FPV Drone Racing Fixed-Wing Long-Range Flight Compatible with F405 F722 Flight Controller by Speedybee

Free shipping on orders over $29.99

$21.99

$ 10 .99 $10.99

In Stock

1.Model:Bz-121


About this item

  • 【Dual-Protocol Compatibility】: This GPS module is compatible with both NMEA and UBX protocols, offering versatility and making it suitable for various devices and flight controllers.
  • 【Accurate Positioning】: Equipped with advanced GPS technology, this module ensures precise and dependable location data, providing you with reliable navigation for your aircraft.
  • 【Simple Installation】: With its compact and lightweight design, this module is easy to mount on any RC airplane or FPV fixed-wing aircraft, making setup a breeze.
  • 【Quick Satellite Lock】: The BZGNSS GPS module is engineered to lock onto satellite signals rapidly, even in challenging environments, allowing you to take off and start flying with minimal wait time.
  • 【Additional Features】: M10 Dual Protocol GPS system, ultra-compact and lightweight, supports BDS satellites, and features a built-in battery to eliminate issues from poor battery connections.



Product Description

BZ-251 Specifications:

  • Chip: M10 (ten generation chip)
  • Frequency: GPS L1, GLONASS L1, BDS B1, GALILEO E1, SBAS L1, QZSS L1
  • Power: 5V
  • Size: 25mmx25mmx8mm
  • Antenna: Ceramic antenna (oil spraying process, prevent scratching and oxidation)
  • Receiving Channels: 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: 2D ACC1.5m (open air)
  • Receiving Sensitivity: Trace: -162dBm, Capture: -160dBm
  • Dynamic Characteristics:
  • Altitude: 50000m
  • Speed: 500m/s
  • Acceleration: 4G
  • Operating Temperature: -40°C - +85'C
  • Storage Temperature: -40°C - +105°C

Note:

Due to GPS chip is a new generation chip, flight control needs firmware 4.29 and above, the firmware below 4.29 uses NMEA protocol.

Package Included:

1x BZ-251 GPS Module


Bmo
2025-09-02 14:46:25
Used the older generations for a long time. This little guy locks on satellites quick and the compass calibrated with zero issues in Ardupilot. I am so glad i found a winner, Ill be using this one in all future builds.
Charles
2025-08-20 14:20:15
Wired up to F405V3, sent/received sat data within minutes and locked onto location. Does what it does.
jack
2025-08-02 17:58:39
33 sats on INAV in just a few mins. can get 15-20 sats inside and in like 20 seconds
jbrick
2025-07-30 12:15:10
Worked as advertised. Works best outside or inside near windows. It's GPS signals, so this makes sense.Used this with a Speedy Bee 405 Flight controller and 3D printed model glider. typically connected to 14-18 satellites outside.
RideTheWave
2025-05-17 15:09:03
Fast links. No problem getting 22 sats in my house on bench.
T
2025-05-16 09:06:01
Immediately connected to 17 satellites sitting on my kitchen table
Brandyn
2025-04-05 12:20:25
It gets 3-6 sats at most and never gets a 3d lock, and rarely has a good enough signal to lock even 1 sat, so it's useless as a gps device for a drone.The other 2 have decent reviews so I'm gonna try them next but I'm pretty disappointed in the bz121. I got the smallest because its going on a toothpick size drone. Guess I'm gonna have to adapt.
KS
2024-12-19 16:12:15
After doing a bit of research. I ended up shielding the wires in between the module and the flight controller. Also ended up relocating it as far away as possible from the VTX antenna. Basically from the back of the quad to the front above the flight camera. This is on a 3" build. Plugged in the USB cable to the flight controller and left the antenna pointed out the window all night to populate the almanac. In the morning, was picking up about 17 - 20 satellites while plugged in to USB. Make sure to unplug your VTX and or camera in case the USB powers them up on your build and you decide to do the same.After doing this, only took a few seconds to acquire enough satellites to arm and fly.Getting about 8 -10 satellites while flying with an HDOP value at 2.1 - 2.7."A HDOP value of 1 or below would give you an accuracy of about 2.5 meters."GPS Return to Home works great.
Stephane Galarneau
2024-12-12 13:17:40
Il accompli se pour quoi il a ete cree
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