Cat. No. QS0704 is a 120 V unit, for use in US/Canada region (https://www.thermofisher.com/order/catalog/product/QS0704).
Cat. No. QS0712 is a 220 V unit, for use in European region (https://www.thermofisher.com/order/catalog/product/QS0712).
Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.