Key Specifications Parameter Specification Brand OMRON Model E3T-SR44 2M Series E3T Sensor Type Photoelectric Sensor, Built-in Amplifier Sensing Method Retro-reflective (without M.S.R. function) Sensing Distance 30 to 200 mm (with E39-R4 reflector) Standard Sensing Object Opaque object, 27 mm dia. min. Minimum Sensing Object 2 mm dia. (at 100 mm sensing distance) Light Source Polarized red LED (650 nm wavelength) Directional Angle 2 to 20° Output Type PNP Open Collector Output Current 50 mA max. Residual Voltage 1 V max. (Load current <10 mA) 2 V max. (Load current 10-50 mA) Operation Mode Dark-ON (Output ON when light is blocked) 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 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 Methacrylate resin Dimensions (W × H × D) 7 mm × 20.6 mm × 11 mm Weight (packaged) Approx. 20 g Accessories Included Instruction manual, Set screws for mounting (M2×14), Nuts, Reflector (E39-R4) Standards/Certifications CE, RoHS compliant