Photoelectric Sensors (Touch Button): Sensor Type - Optical Touch Button; Operating Action - Momentary Action; Voltage Type - V DC; Voltage Range - 10-30V DC; Connection Type - Terminal Strip Connection; Material - Polyetherimide Upper Housing; Color - Black Upper Housing; Output Configuration - PNP; Output Type - Solid State Relay; Style-Shape - DUO-TOUCH Run Bar; Response Time - On/Off: 20ms; Output Rating - 150 mA max.; Enclosure Rating - IEC IP20; Temperature Rating - 0 to 50 deg C (32 to 122 deg F); Dimensions - Housing w/Cover Less Mounting Base HxWxL: 5.4x5.5x18.6" (137x139x474mm); Indicator LEDs - Two: Green - Power ON, Green - Output Activated (flashes when internal fault or blocked button detected on power up); Manufacturer Series - DUO-TOUCH STB Series