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The Honeywell SS400 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. These sensors are capable of continuous 20 mA sinking output and may be cycled as high as 50 mA max.

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