Add to Cart Quick view Tektronix TDS 520, 540 Performance Verification Tektronix Was: $36.50 Was: $80.00 Tektronix TDS 520, 540 Performance Verification Condition: UsedPlease view our photo set and contact us if you have any questions about the condition of this item. 37728 SKU: 37728 Weight: 2.00 LBS