Laser Modules & IR Emitters

About

Explore our range of laser modules and infrared (IR) emitters for Arduino, robotics, and optical sensing projects. From 650nm red laser dot and line modules for alignment, targeting, and tripwire systems, to 940nm IR emitter modules and bare IR LEDs for remote control transmission, obstacle detection, and optical communication — every optical emitter component for your project is here. All laser modules in this collection use a standard 3-pin interface (VCC, GND, Signal) compatible with Arduino digital output pins — no additional driver circuitry required. IR emitter modules are KY-005 compatible for direct integration with Arduino sensor kits. Bare IR LEDs provide maximum design flexibility for custom PCB and breadboard circuits. What’s in This Collection? Laser red dot module (650nm, 5mW) — focused dot beam; continuous output; for targeting, tripwire, and position sensing Laser red line module (650nm, 5mW) — cylindrical lens line beam; for alignment, leveling, and machine vision structured light Laser emitter module (650nm, 5mW) — KY-008 compatible; digital on/off control; for Arduino laser tripwire and optical communication IR emitter module (940nm) — KY-005 compatible; pre-installed resistor; for Arduino IR remote control and obstacle detection IR emitter LED (940nm, 5mm, 5-pack) — bare through-hole IR LED; for custom IR remote control, tripwire, and proximity detection circuits Laser Safety ⚠️ All laser modules in this collection are Class IIIA (5mW) laser products. Never point the laser at eyes or reflective surfaces. Always follow laser safety guidelines. Keep away from children. Typical Applications Laser tripwire security system — laser dot module + LDR sensor; detect beam interruption for intrusion detection Laser alignment and leveling — laser line module; project a reference line for alignment tasks Machine vision structured light — laser line module; 3D surface scanning and inspection Arduino IR remote control — IR emitter module + IRremote library; sen