Nest Protect review

Functional and far smarter than your old smoke detector, the Nest Protect is back -- minus the gesture recognition. But more work is still need to make the smart home truly brilliant.
Functional and far smarter than your old smoke detector, the Nest Protect is back -- minus the gesture recognition. But more work is still need to make the smart home truly brilliant.
Functional and far smarter than your old smoke detector, the Nest Protect is back -- minus the gesture recognition. But more work is still need to make the smart home truly brilliant.

Highs

  • Easy setup
  • Clear warnings, including spoken alarms
  • No hub required

Lows

  • No more gestures to shut it off
  • Limited integration with Nest thermostat

DT Editors' Rating

After a brief hiatus, Nest’s innovative smoke and carbon monoxide detector, the Protect, has returned — albeit somewhat technologically chastened.

Originally designed to solve, among other hassles of the modern home, the problem of blaring and frightening false alarms, the Protect came with a gesture recognition feature that allowed owners to shut it off with a wave of the hand. It was a novel approach to quieting a ceiling-mounted device without a step ladder. Unfortunately, the Protect could be inadvertently shut off with the wrong gesture, so the company withdrew the product from the market for about two months. It’s back now, minus the gesture recognition. Does it still have enough smarts to justify its $99 price tag?

The Protect can still be remotely monitored over a Web connection using an app. It connects to a home Wi-Fi network, without the need for an extra hub attached to a router. And it will work within the same Nest app used for the company’s thermostat, although there is limited coordinated functionality between the two.

Related: Nest thermostat review

Several Nest Protects can work in conjunction, however: When one starts sounding an alert, say, in a remote room in the house, the alarm will be relayed to the others nearby on the network so that an owner will still be able to hear the horn.

Installation and Setup

While we wouldn’t characterize the Protect as sexy, it does put an attractive face on what is otherwise a dull utilitarian object. It comes in white or black with a single large button, around which there’s a ring that glows green (indicating that all is well), blue (it’s working on a connection), yellow (there may be a problem or a message), red (there’s definitely a problem), or white when someone walks near the device in the dark. The last feature, called Pathlight, can be shut off.

NEST Smoke Detector front open

The Nest Protect requires 6 AA batteries (there’s a wired version, as well, for the same price) and it contains a photoelectric smoke sensor and a carbon monoxide sensor. There are also heat, light, motion, and ultrasonic sensors. Once it’s online, the Protect performs a daily check to make sure it’s working properly.

To set it up, one downloads the Android or iOS app and makes a wireless connection to the Protect. After entering some basic information, such as your Wi-Fi password and the location of the device (bedroom or entryway, for example), the detector connects to your home network and you then have remote access to the device.

Protect and Serve

Remote access amounts to information about the Protect’s status, when the last software update was installed, when you last performed a manual test, and any alerts should an emergency arise. Additionally, if you’ve ever wasted hours trying to pinpoint which detector in your house was chirping because the batteries were dying, you’ll appreciate the fact that the Protect will alert you in the app that the batteries are low — and in which detector. No mysterious chirping necessary.

The Protect will alert you in the app that the batteries are low — and in which detector. No mysterious chirping required.

The Protect should be installed in the same manner as a traditional detector, in a place with good airflow but not directly above any heat sources, such as a stove or fireplace. And yes, you’ll have to put in a few screws to hang the device (it’s intelligent, not magic).

When you push the Nest button to conduct a test, a female voice counts down to the alarm, and then once it’s over announces, “Everything is okay.” The spoken instructions may initially seem superfluous — and a little too casual, if you ask us — but they can be helpful when they inform you in which room a detector senses a problem, for example. (The company also claims spoken alarms are more helpful than a lone horn in waking some children.) Naturally, when the alarm sounds, you’ll also get a notification on your phone, something second home owners will appreciate.

We couldn’t test the CO sensor without creating a dangerous situation, but like other models on the market, the Protect is UL tested and approved. The CO component also has one feature that coordinates actions with the Nest Thermostat. If dangerous levels of CO are detected, not only does the alarm sound, but it also will instruct a gas furnace-connected Nest Thermostat to shut off the heat, since that is typically the source of the problem. Now that’s smart.

Those concerned about privacy should note that, yes, the Protect does record activity in its presence. The main idea is not to spy on families but rather to communicate information to the Nest Thermostat and improve the accuracy of its “Away” mode in turning down the heat or A/C when no one is home.

Still Got It

As with the smart thermostat space, the Nest Protect is not alone. Kidde has a $50 combination smoke and CO alarm, for example, that also has warnings on an app and sounds alerts on other networked Kidde models. However, an additional $50 Wink hub (available at Home Depot ) is required to enable the online functions.

Related: Never make your bed again. Meet smart bedding

Nest’s real appeal — aside from the aesthetics — is the promise that some day, hereto-forth dumb home devices will become coordinated and smart. That day has not quite arrived. But Nest now also owns Dropcam, and they are both in turn owned by Google. So expect to see more integration between these devices and the rest of your connected gizmos over the next year.

Highs

  • Easy setup
  • Clear warnings, including spoken alarms
  • No hub required

Lows

  • No more gestures to shut it off
  • Limited integration with Nest thermo
Emerging Tech

Awesome Tech You Can’t Buy Yet: camera with A.I. director, robot arm assistant

Check out our roundup of the best new crowdfunding projects and product announcements that hit the web this week. You may not be able to buy this stuff yet, but it sure is fun to gawk!
Smart Home

Abode Systems upgrades its smart home gateway with new chip and Z-Wave Plus

Palo Alto-based Abode Systems is adding an upgrade to its popular smart home starter kit by replacing its central gateway with a second-generation version that supports cellular backup and enhanced Z-Wave support.
Smart Home

Want a smarter home? Ditch the keys with these great smart locks

A good smart lock should offer a combination of security and convenience. Fortunately, these devices keep your home protected, your family safe, and your belongings secure from possible intruders.
Product Review

Ring Video Doorbell 2 is the simplest entry into a smarter doorway

The Ring Video Doorbell 2 may lack the style and sophistication of premium door-dingers, but few can match its simplicity and versatility. The device, available in both wired and wireless configurations, is easy to set up and adds instant…
Smart Home

Project Alias is a ‘smart parasite’ that stops smart speakers from listening

Two designers chose to do something about nosy smart speakers. The result is Project Alias, a "smart parasite" that whispers nonsense to Google Home and Alexa until it hears a specific wake word.
Smart Home

DS3 Clean water-free swatches could be the future of cleaning products

DS3 Clean swatches were on display at CES 2019. The small swatches come in several types, including shampoo and toilet cleaner. They're great for travel, but their real impact is in how such supplies will be shipped and stored.
Smart Home

The Instant Pot Lux is a gateway drug into the pleasures of pressure cooking

The 3-quart Instant Pot Lux is one of the most affordable Instant Pots you can buy. Is it still a solid pressure cooker? Here are our thoughts on the Instant Pot Lux, a great IP baseline model.
Smart Home

Amazon patents a technology to help Alexa fight fake voice attacks

Amazon filed a patent this month for a new technology that looks like it would help its digital assistant Alexa fight fake voice attacks that could potentially fool Alexa's biometric security protocols.
Smart Home

Amazon Prime members number more than 100 million in the U.S., survey says

Consumer Intelligence Research Partners estimated there were 101 million U.S. Amazon Prime members as of December 31, 2018. Last April, CEO Jeff Bezos wrote there were more than 100 global million Prime members.
Smart Home

With focus on interoperability, is Nevo Butler a smarter home hub?

Universal Electronics is the latest company getting into the smart home market, announcing at CES 2019 that it intends to market the Nevo Butler, a new smart home hub with onboard A.I. and voice control technology.
Emerging Tech

Google’s radar-sensing tech could make any object smart

Computer scientists have shown how Google’s Soli sensor can be used to make dumb objects smart. Here's why radar-powered computing could finally make the dream of smart homes a reality.
Smart Home

The best air fryers deliver fried food with a fraction of the calories

What is this magical mechanism? It's an air fryer, and when used correctly, it can mimic the effects of frying while using just a little bit of oil. You still get that crispy, golden exterior and the fluffy center.
Emerging Tech

‘Tech vest’ prevents Amazon workers from colliding with robot co-workers

Amazon workers at its fulfillment centers are using "tech vests" to help protect them from collisions with their robot co-workers. The robots already have obstacle avoidance sensors, but the belt offers another layer of safety.
Smart Home

Legrand’s Smart Lighting touts security, interoperability, and simple setup

Near universal connectivity including Amazon Alexa, Google Assistant, Samsung SmartThings, Nest, Ring, and the Internet of Things is the theme of Legrand's Smart Lighting Radiant collection of switches, dimmers, outlets, and plugs.