2-Wire 2-Wire DC circuitry typically includes a diode bridge in series with the sensor, allowing functionality either as NPN or PNP in a DC circuit. Acceptable values of leakage current must be ...

Inductive proximity sensors are non-contact proximity devices that set up a radio frequency field with an oscillator and a coil. The presence of an object can alters this field and the sensor is able ...

These connect to an LX3302A inductive sensor IC, which reads the position of the copper slug inside the float. That simplifies the process greatly; [Mark] goes into great detail about the design ...