Additional Features: Wavelength range: 450 to 1020 nm Power range: +10 to -100 dBm Display resolution: 0.001 dBm Applicable Fiber Type: Parallel beam, 9/125 µm to 100/140 µm, NA < 0.3 Linearity: + 3 to -80 dBm Display resolution (W): 0.1 pW Uncertainty at Reference Conditions: ± 2.2% The Agilent 81533A interface module operates with the 815xx optical head and 8153, 8163, and 8164 mainframes. Agilent does not publish specifications for the Agilent 81533A interface module as it must always operate with an optical head and mainframe. The Agilent 81533A module can be used with optical heads: Agilent 81521B and 81524A.