● Including He-Ne Laser and CCD Camera with Power Supplies● Including Exposure Timer with Portable Illuminometer● Complete system ● Easy operation   

● Including He-Ne Laser with Power Supply● Including Exposure Timer with Portable Illuminometer● Steel Base for Stable Performance  ● Precise Measurement with Easy Operation  

● Including He-Ne laser, Sodium, Mercury, Hydrogen-Deuterium, and white-light lamps with power supplies● Including air chamber with gauge for refractive index measurement of air● Flexible configur...