Key Specifications Parameter Specification Brand OMRON Model E3T-SL22M 2M Series E3T Sensor Type Photoelectric Sensor, Built-in Amplifier Sensing Method Limited Reflective (Convergent Reflective) Sensing Distance 5 to 30 mm (with white paper 50 x 50 mm) Minimum Sensing Object 0.15 mm diameter (at 10 mm sensing distance) Differential Distance 6 mm max. Light Source Red LED (650 nm wavelength) Output Type NPN Open Collector Output Current 50 mA max. Residual Voltage 1 V max. (Load current <10 mA) Residual Voltage 2 V max. (Load current 10 to 50 mA) Operation Mode Dark-ON (Output ON when light is blocked by object) Response Time 1 ms max. (Operate or reset) Power Supply Voltage 12 to 24 VDC ±10% (ripple 10% max.) Current Consumption 20 mA max. Protection Circuits Output short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection Indicators Operation indicator (orange LED), Stability indicator (green LED) Connection Method Pre-wired cable, 2 m length Protection Rating IP67 (IEC 60529) Ambient Illuminance Incandescent lamp: 5,000 lx max., Sunlight: 10,000 lx max. Operating Temperature -25 to 55°C (with no freezing or condensation) Storage Temperature -40 to 70°C Operating Humidity 35% to 85% RH (with no condensation) Insulation Resistance 20 MΩ min. (at 500 VDC) Dielectric Strength 1,000 VAC 50/60 Hz for 1 min Vibration Resistance (Destruction) 10 to 2000 Hz, 1.5 mm double amplitude or 300 m/s², 0.5h each X/Y/Z Shock Resistance (Destruction) 1,000 m/s², 3 times each direction Housing Material Case: Polybutylene terephthalate (PBT) Lens Material Denatured Polyarylate Mounting Type M3 screw mounting Dimensions (W × H × D) 7 mm × 24.5 mm × 11 mm Weight (packaged) Approx. 20 g