Occupancy sensors must be located where they will detect occupants or occupant activity in all parts of the room. There are two types of occupancy sensors: ultrasonic and infrared. Ultrasonic sensors detect sound, while infrared sensors detect heat and motion.
1 High School Diploma-High school graduates can expect, on average, to earn $1.2 million in lifetime income. 2  Bachelors degree-Those with a bachelor's degree, $2.1 million over a lifetime: 3  High School to Bachelors-That average value of a 4-year degree is increased earnings income of $900,000, almost a million dollars. Bachelors degree-Those with a bachelor's degree, $2.1 million over a lifetime: 2  High School to Bachelors-That average value of a 4-year degree is increased earnings income of $900,000, almost a million dollars.
According to their website, the 2010 Median Pay is $72,550 per year, or $34.88 per hour. Delving a little further, they state that the lowest 10% earned less than $42,860, while the highest 10% earned more than $119,000.