Keyence Model: LV-H300T&R/ Laser Receiver Head/ Transmissive Sensor Head, Area Type, 30-mm Wide
Type- Area thrubeam, high performance
FDA (CDRH) Part 1040.10- Class ll
Light Source- Visible red semiconductor laser
Output- 3.0mW (FDA), 1.0mW (IEC)
Wave length- 660nm
Laser class- IEC 60825-1 Class ll
Detecting area- 30mm, 1.18"
Detecting distance- 2000mm, 78.74"
Pulse duration- 3.5 us
See photos for more details