Pressure from legislators, regulators and consumers will push the auto industry to drastically increase its use of sensors, says a new report from Frost & Sullivan, a California-based consulting firm. Despite the expected growth in numbers of sensors going on vehicles, the report expects revenues from sensors to grow only 1% a year from 1995 to 2005 as price declines offset volume increases. California-based consultant Tier One says advanced electronics will boost the effectiveness of future air bag systems. By collecting data on collision severity, weight, position and seat belt status of occupants, as well as the presence of a child seat, auto accident injuries should be reduced, the researchers conclude.