Helium-Neon laser tube-5mW 05-LHP-111 - Melles Griot

5mW Helium-Neon laser - 632.8nm (visible red)  by Melles Griot

model :  05-LHP-111    class: IIIa

status:  *****SECOND USER ITEM *************   circa : Dec1994   tested 1/4/14  fires instantly - run for 2 hours fine !

dims: 44.2mm diameter x 272mm long black anodised aluminium tube.    leads: single lead approx 1m to ALDEN male connector.

safety features: has manual lens shutter to avoid accidental exposure to beam, simple on/off slider.

***********  WARNING - LASERS ARE DANGEROUS... ************

*********  USE EYE PROTECTION AT ALL TIMES DESIGNED FOR THIS WAVELENGTH ***************

 ********* THIS IS A PIECE OF LABORATORY EQUIPMENT NOT A TOY  **********