Combination Smoke & Carbon Monoxide Alarm - HZ840

• Double the Detection – Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device
• Worry-Free 10-Year Battery – No battery changes for 10 years.† Avoids inconvenient battery replacements over the life of the device
• Voice Alerts – Crystal-clear voice alerts in English and French tell you exactly why your alarm is sounding so you can react quickly
• Self-testing Alarms – For added assurance, internal components ensure alarm is always operating as expected
• Simple Installation – Easy install with included twist-and-click mounting bracket
• End-of-life Notifications – No low battery chirps! This alarm beeps to remind you it’s time to replace it 10 years after it is powered

Specifications

Power Source

Battery Operated

Manufacturer's Warranty

10-Year Limited Warranty (battery included)

Smoke Sensor

Photoelectric

CO Sensor

Electrochemical

Audio Alarm

85dB at 3m (10ft)

Temperature Range

4.4˚C (40˚F) to 37.8˚C (100˚F)

Humidity Range

10 to 95% relative humidity (RH), non-condensing