Product Name: Trc12-4dn Proximity Switch, Cylindrical with Connector Type Proximity Switch Model NO.: TRC12-4DN Customized: Non-Customized Certification: CE IP Rating: IP67 Feature: SemiConductor Material: Plastic Production Process: Integration Output Signal Type: Switching Type Type: Proximity Sensor Switch Mounting: Direct Cording Trademark: LFE Transport Package: Box, Ctns Specification: NPN Origin: China HS Code: 8536500000 Product Description Promixity switch also called proximity sensors, can be devided into inductive type , capacitive type , simulative type , Hall type , magnetic type . Sensor can support using of Plsc PROGRAMMABLE ConTROLLER , SCM ,sr circuit ,electronic counters , solid state relay , small relays , etc products with magnetic use . The transmitter aims at the target and generates light beam , and ther receptor turns the light energy received into current and transmits it to the detection circuit backwards . It can filter our and effective signal and use it .