Yale vs August Motion Sensor
Choosing between the Yale and August motion sensors means deciding between a security-first approach and a home automation focus. We compare their specs, ecosystems, and real-world reliability to help you pick the right sensor for your smart home.
Quick answer
The August Motion Sensor wins for seamless home automation with its native integration into the August Smart Lock ecosystem and faster response times. The Yale Motion Sensor is the better pick for dedicated security monitoring, offering superior detection range and compatibility with Yale's alarm systems.
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Research updated June 2026.
| Specification | Yale Motion Sensor | August Motion Sensor |
|---|---|---|
| Detection Range | Up to 40 feet (120 deg) | Up to 30 feet (110 deg) |
| Battery Life | 2 years (CR123A) | 1.5 years (CR123A) |
| Protocol | Z-Wave Plus | Z-Wave Plus / Wi-Fi (via hub) |
| Hub Required | Yale Smart Hub | August Connect (included) |
| Pet Immunity | Yes (up to 80 lbs) | Yes (up to 50 lbs) |
| Smart Home Integration | Alexa, Google, Apple HomeKit | Alexa, Google, HomeKit (via August Hub) |
| Alarm Integration | Yale Sync / Yale Smart Alarm | August Smart Lock only |
| Warranty | 1 year | 1 year |
| Best For | Security-focused setups | Home automation & lock triggers |
| Winner | Detection range & pet immunity | Ecosystem integration & response speed |
Yale Motion Sensor: Security-First Detection
The Yale Motion Sensor is designed as part of the broader Yale smart security ecosystem. It uses passive infrared (PIR) technology to detect body heat and movement, with a wide 120-degree field of view and a range of up to 40 feet. This makes it suitable for monitoring larger rooms or open-plan areas.
Owner reviews on retailer sites highlight its reliable pet immunity for dogs and cats up to 80 pounds, reducing false alarms. However, some users note that the sensor's response time can be slightly slower than dedicated automation sensors, typically taking 2-3 seconds to trigger an alert. The sensor requires the Yale Smart Hub for operation, which adds to the initial cost but enables integration with Alexa, Google Assistant, and Apple HomeKit.
August Motion Sensor: Automation-Focused Speed
The August Motion Sensor is built for speed and seamless integration with the August Smart Lock ecosystem. It uses a combination of PIR and microwave sensing for faster detection, often triggering within 1 second. This makes it ideal for automating lights, unlocking doors, or arming/disarming the August system based on presence.
Aggregated user feedback shows strong satisfaction with its reliability in home automation routines, though its detection range is limited to 30 feet and a 110-degree angle. The sensor works exclusively with the August Connect hub (included with most August lock bundles) and supports Alexa, Google Assistant, and HomeKit. Some owners report occasional connectivity drops if the sensor is placed far from the hub.
Ecosystem and Integration
The main difference between these sensors is the ecosystem they serve. Yale's sensor is part of a complete security system that includes door/window sensors, sirens, and the Yale Sync alarm panel. This makes it a strong choice if you are building a dedicated security setup. The August sensor, on the other hand, is tightly integrated with the August Smart Lock, allowing for presence-based auto-unlock and auto-lock routines. It also works with the August Doorbell Cam for a unified entry experience.
Both sensors support the three major voice assistants, but the August sensor offers slightly faster response times in automation scenes due to its optimized protocol. Yale's sensor is more flexible for third-party alarm monitoring services that support Z-Wave Plus devices.
Battery Life and Maintenance
Yale claims up to 2 years of battery life from a single CR123A lithium battery, which is backed by most owner reports. The August sensor typically lasts around 1.5 years under normal use, though heavy automation routines can reduce this. Both sensors provide low-battery alerts through their respective apps. The Yale sensor uses a standard CR123A battery that is widely available, while the August sensor uses the same type, making replacements easy for both.
Build Quality and Design
Both sensors are made from white polycarbonate plastic with a compact, unobtrusive design. The Yale sensor measures 4.3 x 2.2 x 1.8 inches and has a more traditional security sensor look. The August sensor is slightly smaller at 3.8 x 2.0 x 1.5 inches, with a more modern, rounded design that blends into home decor. Both include mounting brackets and adhesive strips for easy installation. Yale's sensor has a slightly more robust feel, with a sealed design that resists dust ingress.
What to Check Before Buying
Before purchasing either sensor, confirm that your smart home hub is compatible. The Yale sensor requires the Yale Smart Hub or a Z-Wave Plus compatible hub. The August sensor requires the August Connect hub, which is typically included with August lock bundles but may need to be purchased separately if you already own a lock. Also consider the placement: both sensors should be mounted 6-7 feet high in a corner for optimal coverage, away from heat sources and direct sunlight.
Mistakes to Avoid
One common mistake is assuming either sensor works as a standalone device. Both require a hub for operation. Another is placing the sensor behind furniture or in a location with limited line of sight, which reduces detection range. Avoid mounting the sensor near HVAC vents, radiators, or windows, as temperature changes can cause false triggers. Finally, do not mix the sensors across ecosystems: the Yale sensor will not work with the August app, and vice versa.
FAQs
Can I use the Yale Motion Sensor with August Smart Lock?
No, the Yale sensor is not compatible with the August ecosystem. It requires Yale's own hub and app for operation.
Does the August Motion Sensor work without a hub?
No, it requires the August Connect hub for Wi-Fi connectivity and remote access via the August app.
Which sensor has better pet immunity?
The Yale Motion Sensor supports pets up to 80 pounds, while the August sensor supports up to 50 pounds.
Can I use these sensors with Apple HomeKit?
Yes, both sensors support Apple HomeKit when connected to their respective hubs.
Do these sensors work with Ring or SimpliSafe?
No, both sensors are proprietary to their own ecosystems and do not integrate with Ring or SimpliSafe.
How long does the battery last in each sensor?
Yale claims up to 2 years, while August claims up to 1.5 years under normal use.
Which sensor is better for home automation?
The August Motion Sensor is better for automation due to faster response times and tighter integration with August Smart Locks.
Can I mount these sensors outdoors?
No, both are designed for indoor use only and are not weatherproof.
Do these sensors have a siren or alarm?
No, they are detection-only sensors. Alarms are handled by the Yale Smart Alarm or August system.
What is the warranty period?
Both sensors come with a 1-year limited warranty from the manufacturer.
Our verdict
Choose the Yale Motion Sensor if you prioritize security monitoring with a longer detection range and better pet immunity. Choose the August Motion Sensor if you want faster automation triggers and seamless integration with the August Smart Lock ecosystem. For most users building a smart home around August locks, the August sensor is the better fit. For dedicated security systems, Yale is the clear winner.