Hi @guakus.Go to the bottom of this page: https://shunyata.com/download/13808/
You will see the difference between Delta vs Alpha and Sigma. Not just the gauge, check the jacket, carbon fiber on Alpha and Sigma vs Polycarbonate on Delta.
With regards to gauge, check the Dynamic Transient Current Delivery (DTCD) on Shunyata website under technology
You will see the difference between Delta vs Alpha and Sigma. Not just the gauge, check the jacket, carbon fiber on Alpha and Sigma vs Polycarbonate on Delta.
With regards to gauge, check the Dynamic Transient Current Delivery (DTCD) on Shunyata website under technology