Key Features :

• Smart Smoke and CO Detection
• Receive Alerts on Smart Devices
• Detects Fast & Slow Burning Fires
• Powered By Six AA Batteries
• Wi-Fi & Bluetooth LE Connectivity
• Free Nest App for Android & iOS Devices
• Built-In Speaker and Horn
• Integrated Pathlight Illumination

Nest Protect 2nd Generation Battery Smoke & Carbon Monoxide Alarm 

• Smart Smoke and CO Detection
• Receive Alerts on Smart Devices
• Detects Fast & Slow Burning Fires
• Powered By Six AA Batteries
• Wi-Fi & Bluetooth LE Connectivity
• Free Nest App for Android & iOS Devices
• Built-In Speaker and Horn
• Integrated Pathlight Illumination

SPECIFICATIONS :

• Wireless : Working Wi-Fi connection: 802.11 b/g/n at 2.4 GHz Wireless Interconnect: 802.15.4 b/g/n at 2.4 GHz Bluetooth Low Energy (BLE)
• Sensors : Split-Spectrum Sensor, 450 nm and 880 nm wavelength
                 10 year electrochemical carbon monoxide sensor
                  Heat sensor, 1.8F ( 1C)
                  Humidity sensor, 3% RH
                  Occupancy sensor, 120 field of view to 20’
                  Ambient light sensor, 1-100k Lux Dynamic Range
                  Omnidirectional microphone, 70 dBA SNR
• Audible Indicator : Speaker: 2 W, 80 dB at 3’ (1 m) at 1 kHz
                                  Horn: 85 dB SPL at 10’ (3 m)
                                  RGB color ring with 6 LEDs
• Requirements : Wi-Fi connection
                            Phone or tablet with iOS 8 or later, or Android 4 or later
                            Free Nest account 
• Environmental : Installed Environment Temperature Range: 40 to
                             100F (4 to 38C)
                             Relative Humidity Range: 20 to 80% (non condensing)
• Dimensions (HxWxD) : 5.3 × 5.3 × 1.5″ / 13.5 × 13.5 × 3.9 cm
• Weight : 13.4 oz / 379.0 g

Smart Device Alerts.

The Nest Protect sends a message when there’s a problem or when the batteries are running low

Split-Spectrum Sensor

The Split-Spectrum sensor looks for both fast and slow-burning fires

Hush From the Nest App

Silence false alarms with your smartphone or tablet

Tells You What and Where

The Nest Protect speaks up if there’s smoke or CO and tells you where it is, so you’ll know what to do next

Nightly Promise

Nightly Promise is a quick green glow from the Nest Protect when you turn out the lights, informing you that everything’s working well.

Pathway Light

Usually the Nest Protect has its light turned off, but when you walk underneath it, Pathlight can lighten darkened areas

10-Year Life Span

The sensor in the Nest Protect is designed to last approximately 10 years

Additional Features

• Voice alarms with custom location
• Phone alerts (low-battery, smoke, carbon monoxide, sensor failure)
• Safety checkup
• Heads-up alerts
• Sound check
• Self test
• Steam check
• Wireless interconnect
• Safety history
• Home report
• Emergency shutoff with the optional Nest Learning Thermostat
• Emergency clip record with the optional Nest Cam

Package Contents :

• Nest Protect Battery-Powered Smoke and Carbon Monoxide Alarm (White, 2nd Generation)
• User Guide
• Screws
• Back plate
• Comes with 2 year limited warranty (detail inside)
• Box