Hazard detector, test device for hazard detector, hazard monitoring system and method for testing a hazard detector

1. A hazard detector comprising:

a detector for detecting a hazard condition;

a first communication device for communicating with a central monitoring unit; and

a second communication device for communicating with a test device,

wherein the second communication device is in bi-directional communication with the test device for receiving and transmitting communication signals from and to the test device, and

wherein the hazard detector receives a test mode switching signal from the test device, transmits ID information and a first test mode confirmation signal to the central monitoring unit, transmits a second test mode confirmation signal to the test device, transmits a detection result signal to the central monitoring unit, and outputs a test completion signal.

2. The hazard detector according to claim 1 , wherein the test completion signal includes the ID information to identify the hazard detector and test information to indicate success or failure of a test.

3. A method comprising:

transmitting a test mode switching signal from a test device to a hazard detector;

setting the hazard detector to a test mode;

transmitting a first test mode confirmation signal from the hazard detector to a central monitoring unit;

transmitting a second test mode confirmation signal from the hazard detector to the test device;

processing a hazard condition detected by the hazard detector as a test event;

transmitting a test result signal from the hazard detector to the central monitoring unit;

outputting a test completion signal from the hazard detector; and

setting the hazard detector to a detection mode.

4. The method according to claim 3 , wherein the test completion signal includes ID information to identify the hazard detector and test information indicating success or failure of the test event.

5. The method according to claim 4 , further comprising:

the test device storing the ID information and the test completion signal of the hazard detector in a first log file;

the central monitoring unit storing the ID information and the test result signal from the hazard detector in a second log file;

transmitting the first log file from the test device to the central monitoring unit;

the central monitoring unit matching by the first log file with the second log file; and

the central monitoring unit outputting a test result protocol displaying the hazard detector and test result information for the hazard detector.