... FS-100 He-Ne Stabilized frequency laserthis instrument is a He-Ne laser with high stability ,using ... sea led special high quality cavity laser tube,the laser has unlimited long storage life and it ... `s service life is 10000 hours or more ,unique frequency stable technology ... has features of compact, safe ,reliable,easy to use and etc,The mail parameters:outpit power: ≥ 0.8mw power ...