Photoelectric Sensors (Touch Button): Sensor Type - Optical Touch Button; Operating Action - Momentary Action; Voltage Type - V DC; Voltage Range - 10-30V DC; Connection Type - Cable; Connection Size - 9m (30ft); Material - Polysulfone Upper Housing; Color - Black Upper Housing, Green Field Cover; Output Configuration - NPN; Output Type - Electromechanical Relay; Style-Shape - Block w/Touch Groove & Cover; Response Time - On/Off: 100ms; Output Rating - 7A max.; Enclosure Rating - IEC IP66, NEMA 4X; Temperature Rating - -20 to 50 deg C (-4 to 122 deg F); Mounting Type - Threaded Base, 30mm Dia.; Dimensions - Housing w/Cover Less Mounting Base HxWxL: 2.9x2.0x2.7" (74x51x69mm); Indicator LEDs - Two: Red - Power ON, Red - Output Activated; Manufacturer Series - OPTO-TOUCH OTB Series