槽型光电开关其实对射式光电开关的一种又被叫做U型光电开关，是一款红外线感应光电产品，由红外线发射管和红外线接收管组合而成，而槽宽则就决定了感应接收型号的强弱与接收信号的距离，以光为媒体，由发光体与受光体间的红外光进行接收与转换，检测物体的位置、。槽型光电开关于接近开关同样是无接触式的，受检测体的制约少，且检测距离长，可进行长距离的检测（几十米）检测精度高能检测小物体。 

Catalog listing                             SRF- 30- PI

Supply voltage                                            10 to 30Vdc (ripple not over 10%)

Current consumption                      Max. 30mA

Operation mode                           Light operated

Output form                              PNP

Output                                   Current: Max. 100mA,

Response time                           200Hz (ON/OFF time: Max. 2ms)

Light emitter                             Infrared LED

Indicator                                 Stability indicator: Green

Ambient light immunity                   Incandescent: Max. 3,000lx

Operating temperature range             -20 to +60°C

Storage temperature                     -40 to +70°C

Humidity rang                           45 to 85%RH

Insulation resistance                     Min. 20MW(500Vdc, megger)

Dielectric strength                        500Vac, 1 minute