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Continue to ChatLM393 Beam Infrared Photoelectric Velometer Sensor https://www.multanelectronics.com/product/lm393-beam-infrared-photoelectric-velometer-sensor/
LM393 Beam Infrared Photoelectric Velometer Sensor https://www.multanelectronics.com/product/lm393-beam-infrared-photoelectric-velometer-sensor/