Text: hi, my name is jannix and i am 25 years.

Correct capitalization: Hi, my name is Jannix and I am 25 years.

Text: you won't find a better or more rugged entry-level thermal imager.

Correct capitalization: You won't find a better or more rugged entry-level thermal imager.

Text: and jesus said to them, ye do not know what ye ask. are ye able to drink the cup which i drink, or be baptised with the baptism that i am baptised with?

Correct capitalization: And Jesus said to them, Ye do not know what ye ask. Are ye able to drink the cup which I drink, or be baptised with the baptism that I am baptised with?

Text: retractable clotheslines are becoming an increasingly popular way to dry your laundry.

Correct capitalization:
Retractable Clotheslines are becoming an increasingly popular way to dry your laundry.