Nov - 04
2017
Electric fences are designed to create an electrical circuit when touched by a person or animal. A component called a power energizer converts power into a brief high voltage pulse. One terminal of the power energizer releases an electrical pulse…
Nov - 04
2017
Video door-phone (also known as video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication…
Nov - 04
2017
A security alarm is a system designed to detect intrusion – unauthorized entry – into a building or other area. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as…
Nov - 04
2017
When selecting an automatic, electric, or solar gate opener, first start with the swing type of your driveway gate. Gate openers have limits on the weights they can support. The second consideration is the duty cycle of the gate: how…
Nov - 04
2017
Only authorized entry is allowed