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4 Pcs 3 Pin 650nm Red Laser Transmitter Module Dot Diode Copper Head Sensor Module for Laser Sensor Projects: Amazon.com: Industrial & Scientific
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Red Line Laser Diode Module 135mm Focusable Lens 650nm 5mW 4.5-5V Laser Test Tools Laser Receiver Sensor Module for Arduino 5V
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KY-008 3pin 650nm Red Laser Transmitter Dot Diode Copper Head Module for arduino DIY Kit - ASK Electronics
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