There was nothing said about ultrasound and laser being electronic devices in the passage, however in the question, it was said "they avoid using electronic devices". I agree with you; this was an unfair, tricky question. Finally, I decided to go with the statement being FALSE because laser and ultrasound must be electronic based on my knowledge.
It gave me a hard time. Same goes true with "using different procedure for adult and children". First, I wrote down NOT GIVEN, then changed it to TRUE in the last minute.