The 120091-0012 is a 4-pole Nano-Change? (M8) Right Angle Plug with gold-plated over nickel copper contacts. The Nano-Change? connector is design to withstand harsh-industrial and weather environments. This connector is used to interconnect miniature sensors and actuators found in industrial control applications. The small, compact M8 design also makes this connector well suited for applications requiring a sealed connector in very tight spaces.