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Electrobot 20pcs 5mm 940nm Infrared emitter & receiver diode IR LED | Infrared LED | Infrared Sensor for Arduino (10 Pairs) : Amazon.in: Industrial & Scientific
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BOJACK LED Infrared Emitter and IR Receiver Diode, LEDs Infrared Emission and Receiver Tube for Arduino (Pack of 10 Pairs): Amazon.com: Industrial & Scientific
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