High-Temperature Smoke/Heat Detector KitMaretron&';s High-Temperature Smoke/Heat Detector Kit is an intelligent NMEA 2000A(R) networked solution, designed to alert you of unusually fast rises in temperature or smoke.This kit contains a smoke/heat detector, auxiliary relay, and sounder that are designed to work in high-temperature marine environments, such as engine rooms. The components in this kit are rated from -25AdegC (-13AdegF) to +70AdegC (158AdegF). This system is designed to work with a 24 VDC power supply.Features: Kit contains a smoke/heat detector, auxiliary relay, and sounder Designed to work in high-temperature marine environments, such as engine rooms Connects to an NMEA 2000A(R) network via a Maretron SIM100 Switch Indicator Module (sold separately) Rated from -25AdegC (-13AdegF) to +70AdegC (158AdegF) For use with a 24 Volt DC power supply