Beitian BH-881 GPS + compass module — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/beitian-bh-881-gps/  (sheet CC BY 4.0)
Basis: Secondary source: Flying Tech (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 28, width 28, height 10
- Successor-style module in the same 28 mm footprint as the BN-880, as listed by Flying Tech.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

dimension  value
Dimensions  28 × 28 × 10 mm
Weight  ~10 g
Compass  QMC5883P (I²C)
Pins  SDA, GND, TX, RX, VCC, SCL

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Flying Tech: Beitian BH-881 GPS & Compass Module — web — Publisher's page; dimensions are facts — https://www.flyingtech.co.uk/product/beitian-bh-881-gps-compass-module-for-inav-betaflight/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/beitian-bh-881-gps/index.json
API: https://xemstudio.com/api/geometry?object=beitian-bh-881-gps