NPN to PNP and PNP to NPN converters, two options are both designed into one module.
  You may choose either NPN to PNP or PNP to NPN connection.
   
  LED indicator for output ON
  The converters can be used with all kinds of low voltage sensors
   
  Working Power Supply Voltage : 24 VDC
  Signal Voltage Ouput: 3.3v 12v, 5v or 24 VDC
  Standard DIN rail mounting ( 35 mm)
  Temperature range 10 to 55 C
  high speed counting up to 10Khz
   
  Product size : 80mm L x 80mm W around 
  Note: some times the item is from customized products, the actual productwill have some minor difference from the photo, thanks.