The Maretron SIM100 Switch Indicator Module is a specialized component designed to monitor switch closure devices on a vessel and broadcast their status over an NMEA 2000 network. This module helps the crew track the state of critical safety, security, and monitoring equipment, providing alerts for conditions that require further investigation.Key Features: Monitors and reports the status of connected switch devices Detects circuit issues, including open or short circuits Compatible with a variety of sensors including heat, smoke, carbon monoxide, and bilge water detectors Supports security sensors such as motion, glass break, and magnetic door or hatch switches Monitors for clogged fuel filter conditions via excessive vacuum Regulatory note: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.