The PMIT- Dual Stage from HJ Optronics, Inc. is a Fiber Optic Isolator with Isolation 45 dB, Operating Temperature -5 to 70 Degree C, Optical Power 300 mW, Storage Temperature -40 to 85 Degree C, Wavelength 1310, 1480 or 1550 ± 15 um. More details for PMIT- Dual Stage can be seen below.