Features: 1NON CONTACT SENSOR: The proximity switch is also called non contact switch. When the object reaches the operating distance of the sensing surface, it does not need mechanical contact and apply any pressure, operate automatically 2MULTI PURPOSE: Proximity switch can be used for limit, counting, positioning control and automatic protection in automatic control system. 3IP65 WATERPROOF: The shell of the switch is made of premium ABS and stainless steel material, IP65 waterproof, and can be used for a long time. 4WIDE APPLICATION: The proximity switch is widely used in machine tool, metallurgy, chemical industry, light textile, printing and other industries. 5REVERSE CONNECTION PROTECTION: The switch has built in power reverse connection protection, short circuit protection and non contact detection device. 6APPLICABLE RESISTANCE: The proximity switch supports insulation resistance above 50M , check for better using experience Package included: 5 x Inductive Proximity Sensor&nbsp