Key Specifications Parameter Specification Manufacturer OMRON Automation and Safety Series E3T Sensor Type Photoelectric Sensor, Built-in Amplifier Housing Shape Square type (Rectangular, Side-view) Sensing Method Through-beam (Emitter + Receiver set) Sensing Distance 2 m (78.7 inches / 6.6 ft) Standard Sensing Object Opaque object, 3 mm dia. min. Minimum Detectable Object 3 mm dia. min. (Opaque) Light Source Red LED (650 nm) Output Configuration PNP Open Collector Output Current 50 mA max. Residual Voltage 2 V max. (load current 10-50 mA), 1 V max. (load current <10 mA) Supply Voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max. Current Consumption Emitter: 10 mA max., Receiver: 20 mA max. (Total 30 mA max.) Operation Mode Dark-ON (Output ON when light is interrupted) Response Time 1 ms max. (Operate or reset) Directional Angle Emitter: 2° to 20°, Receiver: 2° to 70° Protection Circuits Output short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection Indicators Operation indicator (orange), Stability indicator (green) Connection Method Pre-wired cable (standard length: 2 m) Degree of Protection IP67 (IEC 60529) Ambient Temperature (Operating) -25 to 55 °C (with no freezing or condensation) Ambient Temperature (Storage) -40 to 70 °C (with no freezing or condensation) Ambient Humidity (Operating) 35% to 85% (with no condensation) Ambient Illuminance Incandescent: 5,000 lx max., Sunlight: 10,000 lx max. Insulation Resistance 20 MΩ min. at 500 VDC Dielectric Strength 1,000 VAC, 50/60 Hz for 1 min. Vibration Resistance (Destruction) 10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s² Shock Resistance (Destruction) 1,000 m/s², 3 times each in X, Y, Z directions Case Material PBT (Polybutylene terephthalate) Lens Material Denatured polyarylate Dimensions (H × W × D) 9.5 mm × 18.5 mm × 7 mm Weight (packaged) Approx. 40 g