Monitor for invisible carbon monoxide with a wireless detector, electrochemical sensing, local 85 dB alarm, test button, and 24/7 panel reporting.
Add electrochemical CO detection, an 85 dBA local alarm, supervised 345 MHz reporting, and an approximately ten-year sensor to a compatible system.
Combine photoelectric smoke, 135 F heat, carbon monoxide, and low-temperature reporting in one 345 MHz detector with an 85 dBA local sounder and bilingual voice alerts.