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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
10pcs Laser sensor Module 650nm 6mm Red Laser Dot Diode Copper Head F Arduino | eBay
4 Pcs 3 Pin 650nm Red Laser Transmitter Module Dot Diode Copper Head Sensor Module for Laser Sensor Projects: Amazon.com: Industrial & Scientific