What device is connected to a circuit which connects to an alarm panel?

What device is connected to a circuit which connects to an alarm panel?

• A. Sensor
• B. Detector
• C. Alarm
• D. Monitor

Answer: (B)

The correct choice is a detector. In electrical systems, particularly those related to security and fire alarms, a detector is designed to sense a specific condition or change in the environment, such as motion, smoke, heat, or gas. Once a detector senses an anomaly, it sends a signal to the alarm panel, which then processes the information and triggers the appropriate response, such as sounding an alarm or notifying monitoring services.

Detectors are integral components of alarm systems, allowing them to effectively monitor a designated area for potential threats. They are purpose-built to react to specific stimuli, ensuring a timely alert to the system about any irregularities.

While sensors also perform a similar function, in many contexts within alarm systems, detectors explicitly refer to devices that not only sense but also initiate alarm protocols, thereby making it the more accurate term in this scenario.