Output Type: NPN (Normally Open or Normally Closed)
Supply Voltage: Typically 6-36V DC, with some models supporting a wider range.
Detection Distance: Varies by model, commonly ranging from a few millimeters to several centimeters (e.g., 1mm, 2mm, 4mm, 10mm).
Output Current: Limited to a few hundred milliamps (e.g., 300mA).
Response Frequency: Indicates how quickly the sensor can switch, usually in the range of 0.5kHz to 1kHz.
Connection: Typically 3-wire, with connections for power, ground, and the output signal.