BZGNSS GPS Module — BZ-121 / BZ-181 / BZ-251, u-blox M10050, Dual Protocol NMEA/UBLOX, FPV FC / Fixed Wing / UAV
- Free US shipping on orders $100+
- In stock, ready to ship
- Backordered, shipping soon
PayPal Secure Checkout
Tap to check out with PayPal, credit or debit card — no account needed
Save 10% at Checkout
Use code SAVE10 for 10% off your order
- Secure Checkout
- 30-Day Defect/Damage Returns
- Fast & Reliable Shipping
BZGNSS GPS Module — BZ-121 / BZ-181 / BZ-251, u-blox M10050, Dual Protocol NMEA/UBLOX
The BZGNSS BZ-121, BZ-181, and BZ-251 are compact, high-accuracy GPS/GNSS modules built around the u-blox M10050 (10th-generation) chip for FPV drones, fixed-wing UAVs, and flight controller builds running Betaflight, iNav, ArduPilot, or similar firmware. All three variants support GPS, GLONASS, BDS (BeiDou), GALILEO, SBAS, and QZSS simultaneous multi-constellation positioning with dual NMEA/UBLOX output protocol, 10Hz update rate, and 1.5m horizontal positioning accuracy. The BZ-251 adds an integrated QMC5883 compass. All modules operate on 5V and cover an operating temperature range of -40°C to +85°C.
Key Features
- u-blox M10050 10th-Gen Chip — Latest-generation u-blox chipset; industry-leading acquisition sensitivity (-160dBm capture), tracking sensitivity (-162dBm), and multi-constellation support in a compact low-power form factor
- 6-Constellation GNSS Support — Simultaneous GPS L1 + GLONASS L1 + BDS L1 + GALILEO L1 + SBAS + QZSS; default joint positioning: GPS + GLONASS + BDS for fast, reliable 3D lock
- Dual NMEA / UBLOX Protocol Output — Compatible with Betaflight, iNav, ArduPilot, and any firmware accepting NMEA or UBLOX binary protocol; no configuration required for most FC stacks
- 10Hz Update Rate — Default 10Hz output frequency (configurable 1–10Hz); fast position updates for responsive GPS Return-to-Home, position hold, and rescue functions
- 1.5m Horizontal Positioning Accuracy — 2D accuracy of 1.5m in open air; suitable for GPS hover, RTH, and waypoint navigation on FPV and UAV platforms
- QMC5883 Compass — BZ-251 Only — Integrated magnetometer on the BZ-251 for heading reference; eliminates the need for a separate compass module on FC builds that support external mag
- Ultrathin Ceramic Antenna — Oil-spray coated ceramic patch antenna; scratch and oxidation resistant for long service life in field conditions
- PPS Lock Indicator — Red PPS LED: no light when searching, flashes on 3D fix confirmation; TX LED on BZ-251 flashes to confirm data output
- Wide Temperature Range — -40°C to +85°C operating; -40°C to +105°C storage; suitable for demanding field environments
Variant Comparison
- BZ-121 — 12×16×4.5mm | 2.2g | PCB pad interface | Ultrathin ceramic antenna | No compass | Smallest/lightest option for ultra-compact builds
- BZ-181 — 18×18×4.8mm (6mm incl. terminal) | 6.9g | SH1.0 4-pin connector | Ultrathin or standard ceramic antenna | No compass | Mid-size with plug-and-play connector
- BZ-251 — 25×25×5.4mm (6mm incl. terminal) | 11.6g | SH1.0 6-pin connector | Ultrathin or standard ceramic antenna | QMC5883 compass included | Best for builds requiring integrated heading reference
Full Specifications (All Variants)
- Chip: u-blox M10050 (10th generation)
- Constellations: GPS L1, GLONASS L1, BDS L1, GALILEO L1, SBAS L1, QZSS L1
- Default Mode: GPS + GLONASS + BDS joint positioning
- FLASH: Supported (configuration storage)
- Power: 5V
- Baud Rate: 115200 bps
- Output Protocol: NMEA / UBLOX (dual protocol)
- Output Frequency: 1–10Hz (default 10Hz)
- Search Channels: 72
- Speed Accuracy: 0.05m/s
- Horizontal Accuracy: 2D ACC 1.5m (open air)
- Tracking Sensitivity: -162dBm
- Acquisition Sensitivity: -160dBm
- Max Altitude: 50,000m
- Max Speed: 500m/s
- Max Acceleration: 4G
- Operating Temperature: -40°C to +85°C
- Storage Temperature: -40°C to +105°C
Compatibility
- Betaflight (GPS Rescue, position hold)
- iNav (waypoint navigation, RTH, position hold)
- ArduPilot / ArduCopter / ArduPlane
- Any flight controller accepting NMEA or UBLOX serial GPS input
- F4, F7 flight controller stacks with UART GPS port
What’s Included
- 1x BZGNSS GPS Module (BZ-121, BZ-181, or BZ-251 per selected variant)
Shipping Policy
Estimated Delivery: Orders typically arrive within 3-7 business days to most locations in North America.
International Shipping: Available with tracking. Transit times vary by destination.
Return & Guarantee Policy
Return Policy: Defective or damaged item? Return it within 30 days for a full refund. Customer pays return shipping.
Technical Support: Need help with compatibility or setup? Contact our FPV experts for free assistance.