The current state of the technology Smoke detectors must be equipped with a system enabling the testing of their functioning, meaning that it must be in some way possible to check that they are functioning correctly. To date, the manufactured smoke detectors have been fitted with a mechanical switch, which actuates the smoke detector's circuits once mechanical force has been applied to it. In practise, this involves a switch built into the body of the smoke detector. Naturally, smoke detectors are usually located on the ceiling and thus the inspection of the detector's functions requires somehow getting to the switch and pressing it. At present, this is mostly undertaken using ladders or bars, which enable the operator to reach the detector. In such cases, however, there is the threat of a fall or other injuries occurring to the operator, as well as the possibility of damage being done to the detector.

The essence of the invention The modification resolves the above-mentioned inadequacies in smoke detectors by building an infrared sensor and signal receiver into the body of the smoke alarm. The receiver picks up the signals emitted by domestic remote control units, such as those used for televisions, radios, videos and other consumer electronics. The smoke detector therefore reacts to a signal sent by a remote control unit and aimed at the detector in question, making it is possible to undertake the test without having to press the test button, especially in those areas, which are difficult to access An overview from the drawings The drawing documentation for this new use of a well-known piece of equipment is not necessary.

Examples of the configuration of the invention This is stated under the heading"the essence of the invention" Industrial uses The equipment stated in the invention can be used in all places where smoke detectors are installed and where access to them is difficult, especially in rooms with high ceilings or in the homes of elderly or handicapped people, but also for the user comfort of all smoke detector users.