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This item will be Ordered on Demand - Order before 20th. Delivery on 31st/1st.
This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm).
Hall Effect Sensor - US1881
SparkFun Sensor Kit
Resistor Kit - 1/4W (500 total)
Infrared Emitters and Detectors