The SS495A1 is a solid state Hall-effect Miniature Ratiometric Linear (MRL) Sensor. The MRL sensor is small, versatile linear hall effect devices which are operated by the magnetic field from a permanent magnet or an electromagnet. It varies in proportion to the strength of the magnetic field. The integrated circuitry provides increased temperature stability and sensitivity. Laser trimmed thin film resistors provide high accuracy (null to ±3%, sensitivity up to ±3%) and temperature compensation. It responds to either positive or negative gauss, monitoring either or both magnetic poles. The quad Hall sensing element minimizes the effects of mechanical or thermal stress on the output.