Honeywell HMC1051 HMC1052 handbook
Datasheet
HMC1051 / HMC1052 SENSOR PRODUCTS are two high-performance magnetoresistive sensors produced by Honeywell. The two sensors have small size, low power consumption, high accuracy and other features, and can be used for direction perception, navigation systems, attitude reference, traffic detection, medical devices, position sensing and other applications.