AQ6317B is in excellent working condition. The price quoted here includes 60 day warranty.

• Applicable fiber: SM, GI (50/125 um)
• Wavelength range: 600 to 1750 nm;
• Wavelength accuracy: <0.02 nm (1520 to 1580 nm), <0.04 nm (1580 to 1620 nm), <0.5 nm (600 to 1700 nm)
• Wavelength linearity: <0.01 nm (1520 to 1580 nm), <0.02 nm (1580 to 1620 nm)
• Wavelength reproducibility: <0.005 nm (1 min.)
• Wavelength resolution: 0.015 nm or better (Resolution setting: 0.01 nm, 1520 to 1620 nm)
• Resolution setting: 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, 2.0 nm;
• Resolution accuracy: <5 % (1310 ~ 1650nm, Resolution 0.05 nm or more);
• -90 to +20 dBm (1200 to 1650 nm, SENS: HIGH); -80 to +20 dBm (1000 to 1200 nm, SENS: HIGH); >-60 to +20 dBm (600 to 1000 nm, SENS: HIGH)
• Level accuracy: <0.3 dB (1310/1550 nm, input level: -30 dBm,
• Polarization dependency: <0.05 dB (1550/1600 nm), <0.05 dB typ. (1310 nm)
• Level linearity: <0.05 dB (input: -50 to +10 dBm;
• Level flatness: <0.1 dB (1520 to 1580 nm), <0.2 dB (1580 to 1620 nm)
• Level reproducibility: <0.02 dB (1550 nm, 1600 nm)
• Dynamic range: 60 dB (1523 nm, peak <0.2 nm, resolution: 0.01 nm); 70 dB (1523 nm, peak <0.4 nm, resolution: 0.01 nm); 45 dB (1523 nm, peak <0.2 nm, resolution: 0.1 nm)
• Approx. 500 ms (SPAN: 100 nm or less); Approx. 0.5 min (SPAN: 100 nm or less)
• Display: 9.4-inch color LCD (Resolution: 640 x 480 dots)
• Optical connector: FC standard