Check the listing for details. SRS SR760 FFT Spectrum Analyzer Stanford Research Systems. Condition: Used. Listed at 1999.00 USD. Optoelectronics Refurbish is happy to present you with the following device: SR760 FFT Spectrum Analyzer Stanford Research Systems, perfect working condition. GPIB tested. Looking at sine, triangular and sine wave, to look at the harmonics. Averaged 100 times. Two units available. One had a dimmer CRT and has been replaced with a LCD screen. See last two pictures. See my other listings for the mainframes, lasers and detectors available. In case of doubt, or if needed additional assistance, please email us to google at OptoElectronicsRefurbish. Consult with us about it, check other items listed. Purchase Orders accepted and mandatory for over 2000$ orders. Payment by ACH/WIRE/CHECK. 5-10% discount for Educational institutions, Government/National labs.