Features:
Professional Manuaturer
High precision attenuation value (ensure 100% tested)
Precision control of attenuation range 
Wide attenuation range
Precision ceramic ferrule
Plastic or metal housing material
ISO9001 / ROHS
FC, SC, ST, LC … optional
Specification:
Operating Wavelength : SM:1310/1550nm MM: 850 /1300nm
Attenuation Range: 1-10dB(1dB step), 15, 20, 25, 30dB
Return Loss: UPC: ≥50dB , APC: ≥60dB
Attenuation Tolerance: <+/-0.5(1-10dB) or <+/-1.0(11-30dB)
Working Temperature : -25°C~+75°C
Storage Temperature : -40°C~+ 85°C
Application:
Fiber optical telecommunication system 
Fiber optical CATV
Fiber optical sensor 
Testing equipment