With RealTest® technology, the CO gas sensing cell used in the CO1224T and CO1224TR CO detectors can be tested using a CO gas agent, fully meeting the requirements of NFPA 720: 2009. Simply put the detector into RealTest mode, spray a small amount of CO into the detector per the installation instructions, and within seconds the detector will alarm, indicating successful gas entry. (See the reverse page or the user manual for complete instructions.) When dangerous amounts of CO are detected, the CO1224T and CO1224TR detectors alert residents by sounding and flashing a temp 4 signal alarm. With 24/7 central station monitoring, residents are guaranteed protection whether they are away from home, sleeping, or already suffering from the effects of CO. The CO1224T and CO1224TR are designed for system operation. These detectors are fully listed to UL 2075 and offer a code-required trouble relay to send a sensor failure or end-of-life signal to the control panel and the central station. The CO1224T and CO1224TR also use SEMS-type terminal Philips head screws for quicker and more positive wiring connections and code-required wiring supervision. With a low current draw, these detectors enable more devices to be connected to the panel, limiting the need to purchase extra power supplies or more expensive panels. As 12/24 VDC detectors, the CO1224T and CO1224TR will operate on most industry security and fire alarm control panels.

• RealTest® enables a functional test using canned CO • Full compliance with UL 2075 • A code-required trouble relay • Wiring supervision with SEMS terminals • A six-year end-of-life timer • 12/24 VDC • A low current draw of 20 mA in standby and 40 mA in alarm • Versatile mounting for wall and ceiling • Accurate and reliable electrochemical sensing technology • Optional CO-PLATE CO Detector Replacement Plate to upgrade previously installed competitor detectors to the CO1224T

Architectural/Engineering Specifications Carbon monoxide detector shall be a System Sensor model number CO1224T or CO1224TR listed to Underwriters Laboratories UL 2075 for Gas and Vapor Detectors and Sensors. The detector shall be equipped with a sounder and a trouble relay. The detector’s base shall be able to mount to a single-gang electrical box or direct (surface) mount to the wall or ceiling. Wiring connections shall be made by means of SEMS screws. The detector shall provide dual color LED indication that blinks to indicate normal standby, alarm, or end-of-life. When the sensor supervision is in a trouble condition, the detector shall send a trouble signal to the panel. When the detector gives a trouble or end-of-life signal, the detector shall be replaced. The detector shall provide a means to test CO gas entry into the CO sensing cell. The detector shall provide this with a test mode that accepts CO gas from a test agent and alarms immediately upon sensing CO entry. Electrical Specifications Operating Voltage 12/24 VDC Audible Signal 85 dB in alarm Standby Current 20 mA Alarm Current 40 mA (75 mA test) Alarm Contact Ratings 0.5 A @ 30 VDC Trouble Contact Ratings 0.5 A @ 30 VDC Physical Specifications Size: CO1224T Length: 5.1 in, Width: 3.3 in, Height: 1.3 in CO1224TR Diameter: 6 in, Height: 1.3 in Approximate Weight CO1224T: 7 oz ; CO1224TR: 11 oz Operating Temperature Range 32°F to 104° F (0°C to 40° C) Operating Humidity Range 22 to 90% RH Input Terminals 14 to 22 AWG Mounting Single-gang back box; surface mount to wall or ceiling