System Sensor
i4 Series
The i4 Series Combination CO/Smoke Detector and Interface Module is the first low-voltage, system-connected, combination smoke and carbon monoxide detection solution for conventional fire and security systems. That means less wire, less labor and fewer devices on the wall or ceiling. The i4 detector’s integral sounder produces both Temp 3 and Temp 4 patterns, sending distinct smoke and CO alerts to the panel and homeowner. And, with 24/7 central station monitoring and the most reliable and accurate sensing technologies, it means the highest levels of protection available.
http://www.systemsensor.com