QUES: If that is the case try to sign in at a later point in time or try the fourth fix

correct the punctuation.

CORRECTED: If that is the case, try to sign in at a later point in time, or try the fourth fix.

QUES: The Fluke i400s is specially designed to offer maximum utility in a compact shape and is the only current clamp available with a CAT IV 600 V CAT III 1000 V safety rating

correct the punctuation.

CORRECTED: The Fluke i400s is specially designed to offer maximum utility in a compact shape and is the only current clamp available with a CAT IV 600 V / CAT III 1000 V safety rating.

QUES: Our security team has ensured that our software offers complete protection for your Credit Card information

correct the punctuation.

CORRECTED:
Our security team has ensured that our software offers complete protection for your Credit Card information.