Weekly tests are recommended to ensure that all the devices and components of the fire alarm system work effectively this test will determine that there are no issues with signal from the device to control panel and that the alarm sound can be heard throughout the building. To carry out this testing one manual call point (MCP) and one smoke detector should be tested on a rotational basis until every device has been tested, the results of these tests should be recorded into a logbook along with the location of each device. Any faults that are found should be rectified immediately. It is also recommended to visually check fire extinguishers (check that they are present and not obstructed; fire exits (check for obstructions and ensure the correct signage is still visible), and if applicable sprinkler systems (Check for blockages and that the water supply is sufficient).