The Photoelectric Smoke detector and the Carbon Monoxide (CO)detector are both listed Analog Addressable detectors compatible with fire alarm control panels that utilize the Potter Addressable Device (PAD) protocol. The CO sensing portion utilizes a proven electrochemical sensor for accurate detection of CO gas for life safety applications. The photoelectric detector complies with UL 268 7th edition enhanced smoke sensitivity tests. It has a wide sensitivity range of 1.1 to 3.5% per foot, and features drift compensation with built in dirty detector warning.