This selector switch provides a versatile and highly visible interface for controlling your machines It provides a clear help in setting your machines in various operating modes It is impact resistant, dust resistant, water resistant, corrosion resistant and vibration resistant, making it ideal for operation in harsh environments It is easily installed into a standard 30mm diameter panel cut-outs High performance International standards & certifications (Marine ABS certification, Type 1, 2, 3, 3R, 4, 4X, 12 and 13)