This double head has 2 white buttons and 1 central white pilot light, it provides a versatile interface for controlling your machines. It is easily installed and replaced on compatible complete push button units and contact blocks via snap-fit assembly. It is distinguishable visually at a distance thanks to its pilot light, clear colors and by touch due to flush elements. It minimizes errors in machine control. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It makes it ideal for operation in harsh environments.