Infrared Ray Reflection Sensor/Infrared Sensor 
STE-311/STE-313 Power AC90~250V and AC/DC 12~110V. High induction, against varied miscellaneous signals. Except bringing its basic instability, can also defend miscellaneous signals from sunlight, fluorescent lamps, flash light, ultrasonic (waves), electromagnetic wave with absolute preventive function. The product applys to automatic door,safety alarm,entrance guard system…