Price history on Walmart.com for
Kidde Hardwired Combination Carbon Monoxide & Smoke Alarm, Model KN-COSM-IBASee on Walmart
• Fire: The red LED will flash and be accompanied by three long alarm beeps followed by a verbal warning message “FIRE!”. The alarm pattern will repeat until smoke is eliminated. • Carbon Monoxide: Four short alarm beeps followed by a verbal warning “WARNING! CARBON MONOXIDE!” This continues until the unit is reset or the CO is eliminated. • Low Battery: One chirp followed by warning “LOW BATTERY.” The red LED light will flash. This pattern will continue every minute for at least seven days. Under battery power, the “LOW BATTERY” voice only occurs once every 15 minutes. Voice Hush Indication: “HUSH MODE ACTIVATED” and “HUSH MODE CANCELLED” voice announcement. • If the alarm had detected a CO level of 100ppm or higher when the Test/Reset button is pressed, the unit will announce “CARBON MONOXIDE PREVIOUSLY DETECTED” to warn of the CO incident.... read more.