PSA Centrii vs eufy: Which Wireless Alarm System Is Right for Your Home?

Most home alarms work fine until the moment you actually need them. The PSA Centrii and eufy 5-in-1 look similar on paper: nearly identical prices, DIY install, no monthly fees. But under the hood, they are built for very different buyers. Here is how to tell which one is right for your home.

Quick Takeaway PSA Centrii ($343.00): Wi-Fi with 4G mobile backup, anti-jam technology, SMS and phone call alerts. eufy 5-in-1 ($349.95): Wi-Fi only, integrates with eufyCam cameras, clean app experience. Neither system charges a monthly monitoring fee. The right choice depends on what matters most to you: resilience or ecosystem.

PSA Centrii Review: Features & Reliability

The PSA Centrii is built for homeowners who want their alarm to work no matter what. Even if your power is cut or your internet goes down, the system keeps sending alerts.

Most wireless alarms rely on your home Wi-Fi. If the internet drops during a storm, an NBN outage, or a power cut, a Wi-Fi-only alarm goes silent. The PSA Centrii adds a 4G cellular backup, the same mobile network your phone runs on. If Wi-Fi fails, the system automatically switches to 4G, so you still get an alert.

It also uses frequency hopping, which constantly shifts the radio signal between channels. This makes it much harder for a burglar to jam the alarm before breaking in, something a standard Wi-Fi alarm cannot defend against.

In addition, the PSA Centrii system integrates with the PSA Centrii App, allowing you to manage not just the alarm, but also compatible PSA Centrii doorbells, cameras and floodlights—bringing your home security into one connected ecosystem.

PSA Centrii: What You Get

• 105dB built-in siren – fires locally with no internet connection needed
• Up to 50 sensors (doors, windows, motion)
• SMS alerts to 3 numbers, phone calls to 5
• RFID tags to arm and disarm without the app
• 4-hour battery backup during power outages
• Connects to 2 central monitoring stations

It is genuine Australian stock with a local warranty. If something goes wrong, you are dealing with a local support team, not an overseas returns process.

Installation & Expandability

The PSA Centrii is a DIY-friendly system that requires no drilling, making it ideal for renters who need a portable setup that can move with them. With support for up to 50 sensors, it scales well for larger properties or homes that may grow over time.

eufy 5-in-1 Review: Convenience & Ecosystem Integration

Where the PSA Centrii is built around reliability, the eufy 5-in-1 is built around convenience. Both systems offer app-based control across multiple devices, but they differ in how their ecosystems are positioned.

The PSA Centrii App allows you to manage your alarm system alongside compatible doorbells, cameras and floodlights in one platform. The eufy 5-in-1 is similarly designed to work with eufy cameras, bringing everything together within the same app and HomeBase hub.

If you already use eufy cameras, the alarm connects directly with your existing setup. Setup is straightforward, the interface is clean, and everything lives in one place. For a metro household with stable Wi-Fi and an existing eufy ecosystem, it is a tidy solution.

eufy 5-in-1: What You Get

• HomeBase hub, one motion sensor, two entry sensors and a keypad
• Sensor battery life up to 2 years; keypad up to 6 months
• Motion sensor covers 100 degrees at up to 9 metres
• Adjustable sensitivity to reduce false alerts from pets
• Direct integration with eufyCam cameras
• App push notifications for alerts

The key trade-off: the eufy connects via Wi-Fi with no 4G cellular fallback. In a stable broadband environment, this is rarely a problem. But in a power outage, an NBN dropout, or if someone cuts your internet before breaking in, the system will not reach you.

Installation & Expandability

The eufy system is also a DIY install with no specialist required. It is distributed in Australia through Directed Electronics AU. Maximum sensor capacity is not publicly stated, which is worth noting if you plan to expand the system significantly.

Side-by-Side Comparison

Which One Is Right for You?

Choose the PSA Centrii if:

• Your home is double-brick or has Wi-Fi dead zones
• You are in a rural area with unreliable NBN
• You want the alarm to keep working during a power cut or internet outage
• You need SMS and phone call alerts, not just app notifications
• You are a renter who needs a portable, no-drill system that moves with you
• You want a system that integrates alarms, doorbells, cameras and floodlights in one app with local support

Choose the eufy 5-in-1 if:

• You already use eufy cameras and want everything in one app
• You are in a metro area with stable, reliable Wi-Fi
• App convenience and camera integration matter more than connectivity resilience
• You prefer a system with an established consumer electronics ecosystem

Our Verdict

For most Australian homeowners, especially those outside metro areas or in areas where NBN can be unreliable, the PSA Centrii is the stronger all-round alarm system. The 4G backup and anti-jam technology covers the real-world scenarios where other alarms go quiet. Add the ability to manage alarms, cameras, doorbells and floodlights in one app, plus local warranty support, and it is a highly practical choice.

The eufy 5-in-1 is a well-executed product for what it is. If you live in a metro area with rock-solid broadband, already own eufy cameras, and want everything in one app, it is a solid all-around choice.

Not Sure Which System Suits Your Home?

Tell us your setup and general region, and we will let you know if NBN reliability or coverage gaps should factor into your decision. Browse the PSA Centrii wireless alarm kit at the Home Safety Store, or check our FAQs before you buy.