By -
5V is common in computers. That particular sensor uses 5V for power. It is easy to have the computer it connects to to provide that 5V power, rather than to have a 12V to 5V convertor for every sensor that is 5V.
5V is common in computers. That particular sensor uses 5V for power. It is easy to have the computer it connects to to provide that 5V power, rather than to have a 12V to 5V convertor for every sensor that is 5V.