An electronic device configured for detecting a fire, the device comprising: memory circuitry ; interface circuitry ; processor circuitry ; and a temperature sensor configured to generate temperature data; wherein the processor circuitry is configured to: determine whether a first generated temperature data meets a first temperature criteria at a first time; and in accordance with the determination that the first generated temperature data meets the first temperature criteria at the first time: transmit, to one or more second electronic device(s), an alarm signal that comprises data indicative of an alarm or a potential fire hazard; determine whether a second generated temperature data meets a second temperature criteria at a second time after the first time; and in accordance with the determination that the second generated temperature data meets the second temperature criteria at the second time, transmit, to the one or more second electronic device(s), an all-clear signal that comprises data indicative of a false alarm or a lack of a fire hazard; wherein the electronic device is configured to have a primary function different from the detecting a fire. memory circuitry ; interface circuitry ; processor circuitry ; and a temperature sensor configured to generate temperature data; wherein the processor circuitry is configured to: determine whether a first generated temperature data meets a first temperature criteria at a first time; and in accordance with the determination that the first generated temperature data meets the first temperature criteria at the first time: transmit, to one or more second electronic device(s), an alarm signal that comprises data indicative of an alarm or a potential fire hazard; determine whether a second generated temperature data meets a second temperature criteria at a second time after the first time; and in accordance with the determination that the second generated temperature data meets the second temperature criteria at the second time, transmit, to the one or more second electronic device(s), an all-clear signal that comprises data indicative of a false alarm or a lack of a fire hazard; determine whether a first generated temperature data meets a first temperature criteria at a first time; and in accordance with the determination that the first generated temperature data meets the first temperature criteria at the first time: transmit, to one or more second electronic device(s), an alarm signal that comprises data indicative of an alarm or a potential fire hazard; determine whether a second generated temperature data meets a second temperature criteria at a second time after the first time; and in accordance with the determination that the second generated temperature data meets the second temperature criteria at the second time, transmit, to the one or more second electronic device(s), an all-clear signal that comprises data indicative of a false alarm or a lack of a fire hazard; determine whether a second generated temperature data meets a second temperature criteria at a second time after the first time; and in accordance with the determination that the second generated temperature data meets the second temperature criteria at the second time, transmit, to the one or more second electronic device(s), an all-clear signal that comprises data indicative of a false alarm or a lack of a fire hazard; wherein the electronic device is configured to have a primary function different from the detecting a fire. <EOS>