Check the listing for details. Burleigh WA-1000 Wavemeter NIR Version. Condition: Used. Listed at 6499.00 USD. Optoelectronics Refurbish is happy to present you with the following device: Burleigh WA-1000 Wavemeter. Clean inside. NIR Model (600-1800nm). Tested with 1310nm FP laser and 1538.98nm DFB laser. GPIB port/card in working condition. RS-232 test upon request. Specification: Measurement Wavelength range: 600 nm - 1800 nm Display units: nm, cm-1 or GHz, air or vacuum Display: Absolute wavelength or deviation from a set point Measurement wavelength accuracy: 1 ppm Input attenuator Automatic, 0-2 OD Input aperture for free air laser: 2 mm Input beam height for free air laser: 7.0" (± .3" adjustable) Optical fiber Input connector: FC connector Second unit (grey) it is working too, but need realignment and maybe a new sliding stage (seem more loose than my other unit). The person that did the alignment missed the fact that the translations stage is at an angle (you could see the deflection of the red He:Ne reference) laterally, what makes the wavelength swing 20pm like noise. Nothing like a little opto-mechanical tuning cannot fix. Any one that have aligned an autocorrelator should be able to do it. I did it in the past while on my studies and on my other WA-1000. I will include a 10% extra discount on this unit for the trouble.