<p>SS59ET Hall Effect Sensor from Honeywell features a thermally balanced integrated circuit. This device has bipolar magnetics for ring magnet applications and built-in reverse polarity protection. Compact in size, it consumes less power of only 5 mA maximum at 4.5 Vdc and delivers reliable performance. This Low Voltage Motion Sensor has an operating temperature range between -40 °C to 100 °C.</p> <p>Hall effect sensors are triggered by a magnetic field and operate as analog transducers and return a voltage directly. These sensors vary their output voltage in response to a magnetic field. This Honeywell sensor is used in a variety of applications such as speed and RPM sensor, brushless DC motor commutation, motor and fan control, magnetic encoding, tachometer, counter pickup, disc speed, flow-rate sensing.</p>