The Honeywell SS400 Series and SS500 Series are small and versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet, and are designed to respond to alternating North and South poles, or to a South pole only. They are available in bipolar, latching or unipolar magnetics. On-board regulation provides stable operation over a 3.8 Vdc to 30 Vdc supply voltage range.

Quad Hall IC design minimizes mechanical stress effects
Temperature-compensated magnetics help provide stable operation over a wide temperature range of -40°C to 150°C [-40°F to 302°F]
Broad, inclusive supply voltage capability from 3.8 Vdc to 30 Vdc for application flexibility
Digital, open collector sinking output for easy interfacing with a variety of common electronic circuits
High sensitivity versions available for potential applications requiring high accuracy or wide gaps
Bipolar, latching or unipolar magnetics

Hall Effect Sensors, Honeywell