A modular stove guard arrangement, comprising a stove guard unit (103, 301, 402) and, as its parts, at least - an outer casing, - inside the outer casing, a plurality of electronic components (1202, 1203) at least partially coupled to each other to cause the stove guard unit to carry out stove guard operations, such as measuring the state of a stove and/or the environment thereof, expressing the measured state as parameter values, comparing the parameter values and/the development thereof with decision conditions and giving an alarm and/or powering off the stove in response to an exceptional circumstance found out in said comparison, and - sensors and a processor coupled thereto, in which stove guard arrangement - said outer casing defines at least a mechanical connection to a host device to allow the stove guard unit to be at least mechanically included in an operating environment of the stove, such as a cooker fan or hood located above the stove or immediate proximity thereof, and, - said outer casing defines a power input connection (304, 408) for receiving, through said host device, operating power for the stove guard unit(103, 301, 402), and/or said stove guard unit (103, 301, 402) has a location for an internal operating-power source, such as one or more accumulators or batteries, characterized in that - said processor is adapted to identify the type of the stove situated in proximity to the stove guard unit as one of: induction stove, ceramic stove, cast iron plate stove, based on the measuring data provided by said sensors, and - said sensors comprise at least one of: electronic field sensor, microphone, radiation receiver operating in different wavelength ranges; and said measuring data is respectively indicative of the stove emitting one of: electromagnetic fields, buzz noise, visible light in the red end of the spectrum. - an outer casing, - inside the outer casing, a plurality of electronic components (1202, 1203) at least partially coupled to each other to cause the stove guard unit to carry out stove guard operations, such as measuring the state of a stove and/or the environment thereof, expressing the measured state as parameter values, comparing the parameter values and/the development thereof with decision conditions and giving an alarm and/or powering off the stove in response to an exceptional circumstance found out in said comparison, and - sensors and a processor coupled thereto, - said outer casing defines at least a mechanical connection to a host device to allow the stove guard unit to be at least mechanically included in an operating environment of the stove, such as a cooker fan or hood located above the stove or immediate proximity thereof, and, - said outer casing defines a power input connection (304, 408) for receiving, through said host device, operating power for the stove guard unit(103, 301, 402), and/or said stove guard unit (103, 301, 402) has a location for an internal operating-power source, such as one or more accumulators or batteries, - said processor is adapted to identify the type of the stove situated in proximity to the stove guard unit as one of: induction stove, ceramic stove, cast iron plate stove, based on the measuring data provided by said sensors, and - said sensors comprise at least one of: electronic field sensor, microphone, radiation receiver operating in different wavelength ranges; and said measuring data is respectively indicative of the stove emitting one of: electromagnetic fields, buzz noise, visible light in the red end of the spectrum.