The SRT-F638S-10/OSYS from Micro Laser Systems Inc. is a Laser with Wavelength 638 nm, Power 0.01 W, Output Power (CW) 0.01 W, Operating Temperature 15 to 30 Degree C, Storage Temperature 0 to 70 Degree C. More details for SRT-F638S-10/OSYS can be seen below.