2 set of C output contacts.
A Passive Infrared burglar alarm reacts when a change of temperature passes through a background of a fixed temperature
hey react to energy expended by a structure when an intruder is attempting to gain entry.
Glass break burglar alarms work by responding to the sound or shockwave produced by glass breaking
Using a light source and a receiving element sensitive to change in light intensity
Detectors are available in many categories such as; Security, Safety and Control
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