This could cause a contact to close and activate some warning device such as a buzzer, or cause the switcher to select the camera that detected the motion. The sampling process may take somewhere between one fiftieth of a second and one second to detect a change, depending on the method of sampling.
The U.S. Bureau of Labor Statistics (BLS) reported that jewelers and precious stone and metal workers in general made an average annual salary of $38,840 in May 2012 (www.bls.gov). The bottom 10% made $19,600 a year or less, and the top 10% made $61,940 a year or more.
Across the United States, computer repair technicians working in the Northeast reported the highest average salaries. Technicians in Connecticut ranked first by state with an average salary of $47,350, while both Massachusetts and Minnesota reported average salaries of just over $44,000 per year.he median-earning 50 percent of computer and office machine repair technicians reported annual incomes ranging from $28,030 to $46,520, while the highest-paid 10 percent made $57,790 or more annually.