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A straightforward Wi‑Fi alarm that does the basics well

I set up the PGST alarm on a Saturday afternoon, aiming to give my small two‑bedroom space a simple, subscription‑free security layer. Out of the box, the kit includes a compact siren hub, a PIR motion sensor, several door/window contact sensors, and a keyfob remote. The idea is simple: the hub sits on Wi‑Fi, the sensors report in wirelessly, and the Tuya app keeps you in the loop with push alerts.

Setup and first impressions

The hardware feels better than I expected at this price. The contact sensors are slim and light, with clear alignment marks, and the PIR sensor has an adjustable bracket that made placement easy. The hub is small enough to tuck onto a shelf near my router, and the keyfob is pocketable with tactile buttons that are hard to press accidentally.

Getting it onto Wi‑Fi took about ten minutes. You’ll need a 2.4 GHz network (typical for smart home gear), and the Tuya Smart app handles pairing. The hub was discovered immediately; each sensor took under a minute to add. One note: Tuya’s device onboarding screens vary a bit by region and phone OS. On my phone, the security category was easy to find, but if you’re traveling or using a non‑standard app store, check that Tuya Smart is available in your region before you buy.

Naming and organizing sensors is where the experience stumbles slightly. I like to label devices by room and door (e.g., “Kitchen Back Door”), and while the app supports renaming, it’s not as streamlined as I’d like when you’re adding multiple sensors at once. Plan on a few extra minutes here so your notifications make sense later.

Daily use: arming, alerts, and the siren

The hub’s siren is the star of the show. It’s loud—loud enough that I didn’t linger in front of it while testing. In a small home or apartment, it commands attention and would be a persuasive deterrent. You can arm/disarm with the keyfob, the app, or via Alexa voice control. In my tests, arming by voice worked reliably; disarming required the app or the remote, which is a sensible safety restriction.

Notifications arrive quickly. Open a protected door, and my phone buzzed within a couple of seconds with a clear alert. The activity log makes it easy to see what happened and when. I appreciate that the app can send confirmations when arming/disarming—handy when you’re not sure if you set it before leaving.

For day‑to‑day living, I found the remote surprisingly useful. Coming home with groceries, I could disarm before opening the door without reaching for my phone. Conversely, when I forgot the remote, the app’s lock screen notification made it quick to arm after I parked.

Sensor performance and placement tips

• Door/window sensors: These use magnetic reed switches and worked reliably with tight open/close detection. I tested with a metal‑framed door and a wooden sash window; both behaved as expected. If your frames aren’t perfectly flush, the included spacers (or a couple of adhesive pads) help align the magnet and sensor halves. Try to keep them within a few millimeters of each other when closed.

• PIR motion sensor: The rated detection range is up to 10 meters with a broad field of view. In a hallway, it covered the space end to end without blind spots. Sensitivity feels tuned for human movement; gentle curtain sway and smaller pets didn’t trip it in my setup, but a quick toddler sprint definitely did. For homes with pets, mount the PIR slightly higher and angle it so it looks across the room rather than down toward the floor to reduce false triggers.

If you need coverage beyond the kit’s included sensors, the system can be expanded with additional PGST/Tuya‑compatible accessories. I added an extra contact sensor for the garage door in the app without trouble.

App experience and automations

Tuya is a broad platform with devices from many brands, and that shows in the interface: it’s capable but not bespoke. For this alarm, the essentials are there—arming modes, device status, push alerts, and logs. Scheduling is basic, but enough to arm at night automatically and disarm in the morning.

Alexa integration worked as advertised. I set a routine to arm “Away” when I told Alexa I was leaving, and the hub responded instantly. As is common with voice assistants and alarm systems, disarming by voice isn’t available in my region for safety reasons; I’m fine with that compromise.

One caution: because this is a cloud‑connected system, remote control and alerts depend on your Wi‑Fi and internet. If your internet goes down, the local sensors can still trigger the siren, but you won’t receive push notifications until connectivity returns. There’s no cellular backup here, so if you need off‑site reliability during outages, this won’t replace a professionally monitored setup.

Reliability over a week of testing

Over a week of daily arming/disarming and intentional triggers, I didn’t encounter missed events. The hub maintained a solid connection to Wi‑Fi, and the sensors stayed paired. Latency from trigger to alert was consistently short. I recommend checking sensor battery levels in the app monthly; the devices are low‑power, but you don’t want a surprise dead sensor on a critical door. Also, give each sensor a test after installation by gently opening/closing and watching for the app alert—five minutes of checks can prevent a silent failure later.

What this system is—and isn’t

The PGST alarm is a do‑it‑yourself kit that prioritizes simple deterrence and instant smartphone alerts without ongoing fees. That makes it an appealing fit for renters, apartment dwellers, and anyone who wants fast installation with minimal tools.

It is not a monitored alarm and won’t call authorities. It doesn’t include cameras, glass‑break detection, or smoke/CO integration out of the box (though the broader Tuya ecosystem may offer add‑ons if you want to build a more complex setup). If you require failover connectivity, professional dispatch, or advanced zone programming with granular entry/exit delays per sensor, you’ll outgrow this kit.

Small usability notes

• The keyfob’s buttons are distinct and include an SOS option that fires the siren—useful in a pinch, but I turned on a short arming delay to avoid accidental trips when fumbling with keys.
• The hub’s status LEDs are bright. If you’re placing it in a bedroom, consider a shelf that doesn’t face your bed or a small piece of matte tape to soften the glow.
• Regional availability matters for the app. Before you set everything up, make sure Tuya Smart is downloadable in your country/region; once installed, operation is smooth.

Who will like it

• Renters who can’t drill holes and want quick, adhesive‑friendly mounting
• Small homes, apartments, and home offices needing door/window awareness and a loud deterrent
• Households already using Alexa who want simple voice arming

Who should look elsewhere

• Anyone needing professional monitoring or a system that contacts emergency services
• Homes where internet outages are frequent and cellular backup is a must
• Power users seeking deep zone programming, advanced entry/exit schedules, or hardwired accessories

The bottom line

The PGST system delivers on its core promise: fast installation, reliable door/window and motion detection, loud local alarms, and immediate phone alerts—all without a subscription. The Tuya app is utilitarian but effective, Alexa integration works, and expandability covers most small‑to‑medium needs. You’ll trade away pro‑grade features like cellular backup and monitoring, and the app’s regional availability and sensor naming workflow could be smoother. But for straightforward, budget‑friendly home security that actually deters and keeps you informed, it’s a solid choice.

Recommendation: I recommend the PGST alarm to renters and homeowners who want an affordable, no‑monthly‑fee system that’s easy to install and operate. It’s particularly good if your goal is deterrence plus timely phone alerts. If you need professional monitoring or outage‑proof connectivity, consider a different class of system; otherwise, this kit hits a very practical sweet spot.