Nest Protect: 2nd Gen, Wired, Smoke & Carbon Monoxide Detector (Pro Model)




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The Nest Protect 2nd Generation, Wired, Wireless Smoke- and Carbon-Monoxide Detector (S3005PWLUS) is an advanced multi-sensor smoke detector that maintains constant vigilance against all types of smoke, and comes with an additional carbon monoxide sensor.

Constantly connected to the internet, the Nest Protect will send alerts to your smartphone or mobile device, alerting you to problems even when you’re not home. The Nest Protect is designed to speak aloud, informing you exactly what problem has been detected, as well as its source. The Nest Protect is one of the best latest-generation multi-sensor smoke detectors available on the market. 


  • Designed to last for 10 years
  • Able to be silenced remotely with your smartphone or mobile device
  • Connected to the internet without any special wiring necessary
  • Speaks aloud to give you more detail about the source of the problem
  • Can send alerts to your smartphone or mobile device
  • Elegant and stylish design
  • Dual Smoke/Carbon monoxide detector

Additional Features:

  • Features Google latest-generation programming technology
  • Instantly connects to your home Wi-Fi network
  • Can connect to other Nest sensors in your home, maintaining the network even if the internet goes down
  • Will send alerts to your mobile device in case of a problem


Can be controlled remotely by a smartphone or mobile device, and with a speaking function to identify the source of a problem, this multi detector will instantly alert you to smoke, fire, or a build-up of deadly carbon monoxide gas. Easy to install, the Nest Protect will automatically connect to other Nest detectors to form a vigilant network of sensors in your home, protecting you and your family 24 hours a day.

Note: This Smoke and Carbon-Monoxide Detector must be purchased with install completed by a Nest Pro. To find a Nest approved installer near you, go to

Benefits of Pro Installation:  5-year Pro Warranty vs. 2-year Retail Warranty.

Customer Reviews

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Ask a Question
  • Can it be hooked up to 2 iPhones at the same time? I’d like to hook it up to my husband’s and mine.

    Yes, as long both have installed the nest app and use the same login.

  • can the wired nest interconnect with existing wired smoke alarms

    Nest protects only connect to other Nest Protects and not to other brand smoke detectors. Nest Protect communicate with each other wirelessly using the Wi-Fi 802.11b/g/n protocol and 802.15.4. It uses both connections together to create reliable, flexible, secure and low-power communication between Nest Protects.

  • The note says this must be installed by a pro. So i cannot buy this 3 pack and install myself?

    Yes, you can install it alone, however, to be eligible for an extended 5-year warranty it is best advised that it should be installed by a pro.

  • do the wired versions charge the battery so they don't have to be replaced so often?

    The Wired Nest protect comes with 3 long-life AA backup batteries in case of a power outage. However, it does not recharge the batteries. 

  • cam I gat models with battery backup can they connected to my home security system if I replace all smoke detectors with a nests

    All Nest Protect Alarms come with a battery backup. 

In The Box

  • 1 x Smoke & Carbon Monoxide Detector
  • 1 x Mounting Plate
  • 4 x Mounting Screws
  • 1 x Power Connector
  • 3 x Wire Covers
  • 1 x Installation Guide

 Info & Guides

User manual

Spec sheet

Welcome Guide



Nest Pro Install



iOS app

Android App

PC App

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