ZnDiy-BRY APM 2.6 HMC5983 High Precision Compass External Magnetometer w/ Temperature Compensation
If you're having trouble with magnetic noise affecting your compass onboard the APM 2.6 board you may want to switch to an external compass that you can mount further away from noise sources such as motors. Features: APM2.6 flight controller external compass magnetic sensor; High precision; With temperature compensation; Plug and plug with installation hole easy to mount.