What is the temperature range the Flood Sensor can work in? Follow The Flood Sensor can function between 32°F to 120°F. We do not recommend placing the sensor in a room that would drop below or above the recommended operating temperature. Facebook Twitter LinkedIn Comments 0 comments Article is closed for comments. Articles in this section Where is the best place to mount my Flood Sensor? Is my Flood Sensor always monitored? What is the size of the Flood Sensor? What is the temperature range the Flood Sensor can work in?