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.
Nail Technician Salary. (United States). Women comprise the majority of Nail Technicians in the United States. Individuals in this line of work make around $10.04 per hour on average. Lower pay rates hover around $7.83 per hour, and the higher rates verge on $15.56. Geographic location and years of experience each impact pay for this group, with the former having the largest influence.