The Quantifire™ wearable environmental sensor by LION continuously monitors temperature and uses AI to detect hazardous temperature conditions and to rapidly detect and predict the rise in temperature that precedes a flashover incident. It then notifies the wearer when conditions may be indicative of a flashover situation. The device begins recording data such as time, temperature and alarm status once the device is exposed to elevated temperatures. This data can then be downloaded and logged via the Quantifire™ app.