The KY-008 Laser Transmitter module can be used as a laser pointer. It emits a dot-shaped, red laser beam.
• Operating voltage: 5V
• Wavelength:650 nm
• PCB size :15 x 24 mm
• Depth: 8 mm
• Weight: 2.2g

Compatible with Arduino, Raspberry PI, ESP32 and other popular microcontrollers.