The Pigtail Free Space Isolator from VFIBRE CABLE LIMITED is a Fiber Optic Isolator with Isolation >30 dB, Insertion Loss <0.3 dB, Wavelength 1310 nm, 1550 nm, Operating Temperature -20 to 75 Degree C, Storage Temperature -40 to 85 Degree C. More details for Pigtail Free Space Isolator can be seen below.