XENSIV™ TCI-B: ASIL-B thermal conductivity H2 sensor for early thermal runaway detection, with low power, fast response time and up to 15-year lifetime The XENSIV™ TCI-B gas sensor plays a crucial role in ensuring safety in battery packs for EVs and energy storage by enabling early detection of thermal conductivity changes caused by initial gas emissions, such as hydrogen and hydrocarbons, offering instant indication of thermal runaway, well before temperatures become critical. Its fast response enables proactive safety interventions, while immunity to poisoning ensures consistent, long-term protection.