... circuit protection, with LED indicate, easily identifiable.- The Proximity Sensor Switch is used for testing parts such as size ... generator, liquid level control and processing procedures for the automatic convergence.Specification: Product NameProximity Switch SensorModelSN04-PTypeDC 3 ... sample order ,and we can ship parcel all over the world by Registered airmail, EMS, FedEx, DHLInternational Buyers ...