Nest CO & Smoke Detectors

• Voice alarms with custom location
• Split?Spectrum Sensor
• Detects carbon monoxide
• 10-year product lifetime
• Heads-Up alerts
• Sound Check
• Nightly Promise
• Pathlight
• Steam Check
• Self Test
• Wireless Interconnect
• Emergency Shutoff with Nest Learning Thermostat
• Emergency clip record with Nest Cam
• Home Report
• Nest app- Smoke,Carbon monoxide, Low-battery, Sensor failure
• 2-year limited warranty. For support, visit
• Our support team is also available by phone.


Generation-2nd Generation

Six long-life AA
Energizer® Ultimate
Lithium batteries
• 120V Connector
• Three long-life AA
• Energizer® Ultimate
• Lithium backup batteries
• White
• Split?Spectrum Sensor, 450nm and 880nm wavelength
• 10 year electrochemical carbon monoxide sensor
• Heat sensor, ± 1.8°F (± 1°C)
• Humidity sensor, ± 3%RH
• Occupancy sensor, 120° field of view to 6m (20 feet)
• Ambient light sensor, 1-100k Lux Dynamic Range
• Omnidirectional microphone, 70dBA SNR
• The alarm should not be installed in locations where the normal ambient temperature is below 4°C (40°F) or exceeds 38°C (100°F).
• Humidity range: 20%RH to 80%RH (non condensing)
• RoHS compliant
• REACH compliant
• Recyclable packaging


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