GOOGLE Nest Protect 2 - AC - AA -

Nest Protect smoke and CO alarm Battery

• It’s time to expect more from your smoke alarm.
  • Nest Protect has been redesigned from the inside out. It has a Split-Spectrum Sensor and tests itself automatically. It’s also the first home alarm you can hush from your phone without any extra hardware required. And it tells you what’s wrong and can even alert your phone.
• Thinks, before it speaks.
  • Nest Protect has a friendly human voice that gives you an early warning. That way you can handle burning toast before it becomes a burning toaster.
• Tells you where the danger is.
  • And when one speaks, they all speak. So the alarm in your bedroom can tell you there’s smoke downstairs.
• Sees both fast and slow burning fires.
  • The foam and particle board in much of today’s furniture make fires burn faster. Technology should keep up. The Split‑Spectrum Sensor uses two wavelengths of light to detect smoke from both fast-burning and smoldering fires.
• Built-in CO sensor.
  • Carbon monoxide is poisonous but you can’t see it or smell it. That’s why Nest Protect has the most accurate type of carbon monoxide sensor available. We also improved our carbon monoxide sensing algorithm.
• Tests itself
  • You’re supposed to test smoke alarms monthly. But 9 out of 10 people don’t. So Nest Protect checks its batteries and sensors over 400 times a day. And it’s the first alarm that uses Sound Check to quietly test its speaker and horn once a month.
• Lights your way
  • If you need a glass of milk in the middle of the night, Nest Protect lights up as you walk underneath it. Pathlight is one of our customers’ favorite features so we made it better and brighter.
• Steam is not smoke
  • Has your alarm ever yelled at you for taking a shower? Nest Protect is the only alarm with Steam Check. It uses custom algorithms and a humidity sensor to look for steam, so you can enjoy a nice, quiet shower.
• Count sheep, not chirps.
  • No one should be woken up by a low-battery chirp at 2 a.m. When you turn off the lights, look for a quick green glow. That’s our Nightly Promise. It means all your Nest Protects have tested themselves, the batteries are good, and there won’t be any chirps. Sweet dreams.
• Look for the light ring.
  • In addition to its voice, Nest Protect uses colors to communicate. And we gave the new Nest Protect a brighter light ring so it’s easier to see in an emergency and better at helping you see things in the dark.

• Length: 5.3 in (13.4 cm)
• Width: 1.6 in (3.95 cm)
• Height: 5.3 in (13.4 cm)

• Nest Protect Battery: 13.9 oz (379.0 g)
• Nest Protect Wired: 13.2 oz (375.0 g)

• White

• Split‑Spectrum smoke sensor
• Electrochemical carbon monoxide sensor (Nest Protect's sensor lasts up to 10 years from the date of manufacture.)
• Temperature
• Humidity
• Occupancy (120° field of view up to 20 feet)
• Ambient light
• Accelerometer

• Six long-life AA batteries
• Battery model: Six long-life AA batteries (Energizer® Ultimate Lithium “L91”)
• Wired model: Three long-life backup AA batteries (Energizer® Ultimate Lithium “L91”)

• 802.11b/g/n (2.4GHz) Wi-Fi
• 802.15.4 (2.4GHz)
• Bluetooth Low Energy

• 40ºF (4 ºC) to 100ºF (38 ºC)
• The alarm should not be installed in locations where the normal ambient temperature is below 40ºF (4 ºC) or exceeds 100ºF (38 ºC). Humidity range: 20%RH to 80%RH (non condensing).

• 80 dB @ 3 ft (1 m) @ 1kHz
• Speaker loudness: 80 dB @ 3 ft (1 m) @ 1kHz
• Horn
• 85 dB SPL @ 10 ft (3 m)

• Two-year limited warranty

• Complies with safety standards set out by UL
• Nest Protect has been tested to comply with safety standards UL 2034, UL 217, and NFPA-72 set out by UL and California State Fire Marshal.

• RGB color ring with 6 LEDs