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详细资料：
The Agilent 81578A variable optical attenuator is designed for multimode fiber applications and features lowest insertion loss and excellent wavelength flatness over a complete attenuation range of 60 dB, for characterizing optical network components for telecomunication and data communication in systems.
Features:
Built-in Shutter for Power Meter Zeroing
Built-in Calibration Capability
Benefits:
The integrated shutter protects test equipment and simplifies referencing and power meter zeroing without changes in the setup.
Enhanced internal calibration feature reduces uncertainties and speeds up calibration in multi wavelength applications.
仪器：
我们的大多数设备在装运之前均经过严格的质量检测与校验。也可申请计量证书。
