The EL-2664 is a carbon monoxide (CO) gas alarm with an integrated transmitter designed for use with Electronics Line 3000's supervised wireless range of receivers. The electro-chemical sensor detects carbon monoxide, measures the concentration, sounds a local alarm and transmits an alarm to the control panel.
Features

• 3 way LED status indication
• Detector test function
• Alarm hush function
• Quick release back plate
• Internal 85db siren
• For use exclusively with Prime

More details online:

• You can expand this system, to have more functions and to be more suitable for other needs(detecting smoke, medical panic button for an older person). You can also connect your phone system to communicate whether an intruder came in or your elderly relative is in need of help.
• Monitoring the system - either personal or professional monitoring, or adding the home automation option;
• Read more about the INFP-CO Wireless CO Detector on the Infinite Prime Wireless Alarms Presentation website.