Phare C1®

Phare C1® is a smart smoke alarm built by Phare Labs to detect fire and carbon monoxide early and accurately. Rather than simply reacting once smoke reaches a threshold, it pairs research-grade sensors with advanced AI, described by the company as "AI-powered early fire and CO detection, backed by our peace and quiet guarantee." It installs in place of an existing smoke alarm, so the hardware swap is a familiar one even though the behaviour is not. The product is aimed at homeowners who want dependable protection without the constant interruption of nuisance alarms, and it keeps much-loved features from the discontinued Nest Protect — such as early warnings, a night light and in-app alerts — while adding new ones including air quality monitoring and intruder detection. Phare C1 is live in the UK, US pre-orders are open, and pricing starts from $149. The product is framed around three everyday failures of conventional alarms. First, false alarms: Phare states that up to 89% of the time, smoke alarms go off for something other than a fire. Second, missed fires: according to data from the NFPA cited on the site, smoke alarms miss 28% of fatal fires. Third, the beeps: the site asks whether you actually know what the different sounds mean, adding that "we don't speak morse code either." These problems matter because an alarm that cries wolf, misses real emergencies, or communicates in unclear signals is one people learn to ignore, silence or disconnect. Phare C1 is positioned as the answer to all three, with the blunt framing that "it's time to fire your smoke alarm." The core capability is detection. Phare's AI algorithm is designed to detect more fires, earlier, while reducing false alarms, so the device alarms for fires and nothing else. A multi-sensor array spots fire and carbon monoxide early and accurately, and the product description notes that detection algorithms learn and improve to make your home even safer over time. Carbon monoxide is handled with particular precision: Phare measures CO with 0.1 ppm precision and sends exposure alerts before other devices do, so occupants can catch carbon monoxide sooner. Because both fire and CO are covered by the same unit, the alarm replaces a narrow single-purpose sensor with a broader safety net that is meant to stay responsive to genuine events rather than to cooking, steam or dust. Beyond sounding an alarm, Phare C1 is designed to inform. The site promises that Phare tells you what's going on and what you can do about it, removing the mystery beeps that leave people guessing. This early-warning approach means you can respond before it gets loud — reacting before an alarm actually sounds in order to keep the home safe and quiet. Phare C1 and C1 Pro also sense motion in the dark and softly light your path, so you are not fumbling for switches on the way to the bathroom or down a hallway. That pathlight behaviour is one of the features Phare deliberately carried over from the Nest Protect, alongside early warnings and in-app alerts. The C1 line extends into areas a traditional smoke alarm never touches. Phare C1 and C1 Pro monitor air quality, which the company frames as helping protect your health and longevity. Phare C1 Pro adds a radar array that spots intruders and sounds the alarm to drive them away, turning the same ceiling device into a basic home security layer. Maintenance is intentionally minimal: Phare tests itself and never needs batteries, so once it is set up the system handles the rest. Alerts and information are delivered through the companion app — customers who came from Nest Predict describe the devices as producing lots of useful home data, and the app is where CO exposure alerts and other notifications surface. Overall the approach is to analyse a large volume of environmental data continuously rather than to wait for a single threshold to be crossed. Phare states that it analyses thousands of data points every minute to keep you safe, doing all of the worrying so that you don't have to. Combined with detection algorithms that learn and improve, that continuous analysis is what underpins both the earlier detection of real fires and the reduction of false alarms. Installation follows the familiar pattern of an existing alarm — Phare installs in place of your old smoke alarm, though as the site puts it, that's where the similarity ends — and setup is described as plug and play peace of mind, with a companion app for review and alerts. The promised outcome is quieter, better-informed safety. Users get early fire and carbon monoxide warnings rather than a device that only reacts at the last moment, fewer nuisance alarms interrupting cooking and daily life, and clear explanations instead of confusing tone patterns. The pathlight adds practical night-time usefulness, and the air quality monitoring adds a health dimension that a standard alarm does not provide. Customers quoted on the site describe the units as problem free in their basic alarm function, simple to install and use, and producing far more detail than their previous Nest alarms ever did. Phare backs the experience with a Peace & Quiet Guarantee: no false alarms in the first 30 nights, or a full refund. Concrete scenarios follow directly from those capabilities. Households replacing expired mains-powered Nest Protect devices use Phare C1 as a drop-in successor while gaining additional data and features. At night, the pathlight illuminates hallways and rooms when motion is sensed in the dark, and the unit continues to test itself and requires no battery swaps. In the kitchen, the AI-driven detection is intended to distinguish real events from everyday cooking so that dinner does not set off the alarm. Where carbon monoxide is a concern, the 0.1 ppm precision and exposure alerts aim to surface risk earlier than other alarms. Users who want a security element can add Phare C1 Pro's radar-based intruder detection, and anyone interested in indoor environment quality can follow air quality readings alongside their safety status. Phare C1 is sold to homeowners in the UK and the US, with UK availability live and US pre-orders open at the time of publication. Pricing starts from $149, with a promotional code offering $35 off any order of two Phares or more, and orders billed in USD or GBP. The company provides free returns from anywhere in the US and UK, an extended warranty of up to five years with Phare+ Pro, and the Peace & Quiet Guarantee covering the first 30 nights. US orders are noted as shipping once UL certification is complete, estimated for summer 2027, and pre-orders can be cancelled at any time for a full refund. A web login at app.pharelabs.com and published API documentation indicate app and API access alongside the physical device. Phare C1's value proposition is straightforward: a smoke alarm that treats false alarms, missed fires and unclear beeps as problems worth solving. By combining research-grade sensors, AI-based detection, carbon monoxide precision, night-time pathlighting, air quality monitoring and app alerts in one ceiling-mounted unit, it aims to make a home both safer and calmer — the smoke alarm, minus the drama.