This sensor is known variously as the Keyes, KeyesIR or Keyestudio KY-032. It is the the functional equivalent of the IrBeady IR-08H, also known as the AD-032. The sensor uses a four pin connector, The pins are labeled: EN (Enable), out (Output), + (Power) and GND (Ground). There are also two potentiometers on the board and one jumper (see picture).