--- type: product schema_version: 1 stock_number: "73091-1" canonical_url: "https://www.artisantg.com/Scientific/73091-1/Stanford-Research-Systems-SR540-Optical-Chopper-Controller" json_url: "https://www.artisantg.com/Scientific/73091-1/Stanford-Research-Systems-SR540-Optical-Chopper-Controller.json" generated_at: "2026-11-06T22:21:22.077Z" last_updated: "2026-09-22T19:05:42.317-05:00" --- # Stanford Research Systems SR540 Optical Chopper Controller _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Stanford Research Systems - Model: SR540 - Condition: Used and in Excellent Condition - Price: $750.00 USD - Availability: In stock, 4 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 10 lb - Shipping dimensions: 14X14X14 in ## Categories - Lab & Analytical > Controllers (primary) ## Details The chopping head and blades are not included. ## Images - - - -