SC Burglar Alarm Practice Questions - South Carolina Burglar Alarm Contractor Examination Exam

Why is a balanced magnetic contact specified on a high-security door instead of a simple reed-and-magnet set?

A bias magnet and matched reed make the switch much harder to defeat with an external magnet It draws less standby current than a PIR It does not need an end-of-line resistor It works only on aluminum frames

Correct Answer:

A bias magnet and matched reed make the switch much harder to defeat with an external magnet

Access more questions from this quiz

Continue to SC Burglar Alarm Practice Questions - South Carolina Burglar Alarm Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions