The HMC1001 1-Axis and HMC1002 2-Axis sensor components provide the most resolution available at 27 µGauss. These sensors also include Honeywell's patented on-chip “Set/Reset” & “Offset” straps which are used to eliminate the effects of stray magnetic fields, temperature drift, amplifier offsets and drift. The HMC1001 and HMC1002 are the most sensitive magnetic sensors offered by Honeywell.