August Smart Alarm Review
August is best known for its smart locks, but the brand also offers a complete home security system. This review looks at the August Smart Alarm, its keypad, door and window sensors, motion detector, and how it compares to dedicated alarm systems.
Quick answer
The August Smart Alarm is a solid choice if you already own an August smart lock and want a basic, easy-to-install alarm system. It lacks professional monitoring and cellular backup, so it is best for renters or homeowners seeking a simple, self-monitored setup.
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Research updated June 2026.
August Smart Alarm Security Kit
Best for August lock owners who want a basic alarm.
Pros
- Easy DIY installation
- Works with August smart locks
- No monthly fees for self-monitoring
Cons
- No professional monitoring option
- No cellular backup
Who is the August Smart Alarm for?
The August Smart Alarm is designed for people who already use an August smart lock and want a simple, self-monitored alarm system. It is not a full replacement for a professionally monitored security service like Ring or SimpliSafe. Owner reviews on retailer sites show that it works well for apartments and small homes where the user wants basic intrusion detection and a loud siren.
Performance and reliability
The system uses a Wi-Fi hub that connects to the August app. The keypad, door/window sensors, and motion detector communicate via Z-Wave. Setup is straightforward: peel and stick the sensors, pair them with the hub, and arm/disarm through the keypad or app. The siren is loud enough to alert neighbors. However, because there is no cellular backup, the system is vulnerable if your Wi-Fi goes down. Some owner reviews mention occasional false alarms from the motion sensor if pets are present.
Build quality and warranty
The August Smart Alarm components feel solid. The keypad has a premium finish, and the sensors are compact. The hub is small and blends into a shelf. August offers a one-year warranty on the alarm system. The brand has a good reputation for smart lock reliability, and the alarm system follows the same design philosophy.
Alternatives to consider
If you want professional monitoring, look at Ring Alarm or SimpliSafe. Ring offers cellular backup and a low monthly fee. SimpliSafe has more sensor options and a longer battery life. If you are already in the August ecosystem, the August Smart Alarm is the most seamless choice, but it lacks the features of dedicated security systems.
FAQs
Does the August Smart Alarm require a subscription?
No, you can self-monitor for free using the August app. There is no professional monitoring option.
Can I use the August Smart Alarm without the keypad?
Yes, you can arm and disarm the system using the August app on your phone.
Does the August Smart Alarm work with Alexa or Google Home?
Yes, it works with both Alexa and Google Assistant for voice control and routines.
How many sensors can I add to the August Smart Alarm?
The system supports up to 30 sensors total, including door/window sensors and motion detectors.
What happens if the Wi-Fi goes out?
The alarm will still sound locally, but you will not receive push notifications until the Wi-Fi is restored.
Does the August Smart Alarm have a siren?
Yes, the hub has a built-in siren that is loud enough to alert neighbors.
Can I use the August Smart Alarm with my existing August lock?
Yes, the alarm system integrates with August smart locks for auto-lock and disarm features.
Is the August Smart Alarm suitable for pets?
The motion sensor can be adjusted for pet immunity up to 50 pounds, but some owners report false alarms.
How long do the sensor batteries last?
Door and window sensor batteries last about 1-2 years depending on usage.
Does the August Smart Alarm come with a warranty?
Yes, August offers a one-year limited warranty on the alarm system.
Our verdict
The August Smart Alarm is the best overall choice for August lock owners who want a simple, self-monitored alarm. It is not the most feature-rich system, but it is easy to install and works reliably. For those who need professional monitoring or cellular backup, Ring Alarm is a better alternative.