OSI Alarm System Gen 2 (4G), 11pc, DIY, Motion & Entry Sensors, Wireless Siren, Remotes, App & Alexa Compatible Self Monitor(No Monthly Fees) or 24/7 Alarm Monitoring (as Low as $15/mo)
$169.98
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Product description
Introducing the second generation of the OSI SMART WIFI ALARM SYSTEM (GEN 2)
Redesigned from the inside – out (Self Monitored DIY Alarm System)
OSI Smart Alarm Gen 2 — Pro‑grade security, zero monthly fees. Self‑monitor or choose optional 24/7 professional monitoring via 4G — flexible protection that fits your life.
No monthly fees — self‑monitor or add optional 24/7 professional monitoring from $15/month.7″ HD control — clear touchscreen for fast, simple operation.Fast setup — guided wizard; install in under 30 minutes.Reliable hardware — 24‑hour backup battery; sensors last up to 5× longer.Built‑in and wireless sirens — loud built‑in siren plus cable‑free strobe for visible alerts.Flexible placement — wall mount or tabletop; expand with extra sensors and cameras.Works with OSI Wi‑Fi cameras — instant visual verification when alerts arrive.Requires 2.4 GHz Wi‑Fi.
24/7 Alarm Monitoring — for as low as $15/month (1 year subscription)
For those seeking enhanced protection, we’re offering 24/7 Alarm Monitoring (with SOS Emergency Dispatch)— for as low as $15/month (1 year subscription). This optional feature provides continuous coverage, giving you peace of mind whether you’re at work, asleep, or away on holiday. If an alarm is triggered, our monitoring team will immediately dispatch emergency services to your home — no delays, no guesswork. You can Cancel anytime and self-monitor instead, with no obligation. Experience reliable, around-the-clock protection — with no commitment upfront.
How to Activate Monitoring: After you receive your alarm system, instructions——will appear on your alarm display during set-up wizard at start-up.For more info on our 24/7 Alarm Monitoring Service: Check out our “Monitoring” page on our Amazon store page. Link located beside main image and under product title at top of page24/7 Alarm Monitoring available in Canada & USA
Lots of New Features!
7″ IPS High Resolution Display (1024 x 600px)
OSI Smart Alarm System’s cutting-edge high-resolution screen. Our redesigned robust OS and software interface offer lightning-fast, real-time interactive menu selections, ensuring a seamless user experience. The new 7-inch 1024 x 600px high-resolution IPS display delivers sharp images and text, enhanced by its anti-fingerprint screen technology. Operation is incredibly swift and smooth, thanks to comprehensive upgrades in UI interface and the addition of user-friendly features.
Free Continuous Updates
The OSI Smart Alarm System Gen 2 boasts free continuous updates, giving users access to new features, fixes, and improvements without extra charges. This ensures a cutting-edge, hassle-free experience, keeping the system up-to-date and highly efficient over time
NEW* Flexible Monitoring with 4G Connectivity Choose between Self-Monitoring with NO MONTHLY FEESor opt-in anytime for 24/7 Alarm Monitoring (Canada & USA). Plans start at just $15/month with a 1-year subscription. No contracts—opt in or cancel anytime for total control.
Even more features!
Works With Alexa & Google Assistant
The OSI Smart Alarm System GEN 2 integrates with Alexa and Google Assistant for voice-controlled security. Users can arm and disarm the system using simple voice commands like “Alexa, arm the security system.” Plus, it offers automation, enabling tasks like dimming lights and arming the alarm by saying “Goodnight,” ensuring seamless convenience and security
Wireless & Built-in Siren included
We’ve upgraded the alarm system by integrating a built-in siren into the display hub, eliminating the need for a wired horn. Plus, the strobe siren now plugs directly into the outlet as we’ve gotten rid of the power cable! This eliminates the need to screw into the wall ensuring a sleek and clutter-free appearance. You can now also connect over 10 of these sirens which makes it a great option for larger properties!
Control from anywhere at anytime 24/7
Get notifications, set alarm modes, sync all your OSI Alarm devices to the app and monitor them from one simple dashboard on your phone with the Smart Life App! When an intruder breaks into your home and triggers one of the sensors, the OSI Wireless Alarm System automatically sends a notification to your smartphone letting you know! You can make the decision as to whether you want to notify the police!
Placement Options
Whether you prefer to have your Alarm display on a bookcase, or the convenience of a side table. With the built-in stand flipping out effortlessly, you have the freedom to choose your preferred surface without any hassle. And if you opt for a minimalist look, rest easy knowing that our alarm system can be easily installed on the wall, becoming a functional part of your decor!
Do it yourself
Easily setup your OSI Smart Wi-fi Alarm system in minutes. Everything you need comes in the box and no tools are required. Simply plug-in the OSI Alarm Display, Follow the wizard to activate your system via the Smart Life app, and place the Contact Sensors, Motion Detectors, and Wireless Strobe Siren in your desired location. Now you’re ready to protect!
Setting up is so simple!
Download Smart Life – create an accountConnect Alarm Panel to Wi-Fi via Smart Life appEnsure smartphone’s Wi-Fi & Bluetooth is EnabledConnect Sensors, Remotes and wireless sirenDownload the User ManualTest System
24 Hour Back-up Battery
Unlike the previous version’s one-hour backup battery, the second generation OSI Smart Wi-Fi Alarm System offers over 24 hours of uninterrupted security coverage during power outages. A notification is sent to your phone letting you know there has been a power interruption. This significant enhancement gives you extended protection, providing safety in emergencies. Once there is a power interruption you will get a notification to your phone letting you know there was a power failure. you will also get a notification when power is restored back to the Alarm System!
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Customer Reviews
4.4 out of 5 stars 175
4.2 out of 5 stars 14
4.7 out of 5 stars 10
5.0 out of 5 stars 2
5.0 out of 5 stars 3
5.0 out of 5 stars 1
Price
$169.98$169.98 $27.98$27.98 $24.99$24.99 $49.99$49.99 $69.99$69.99 $39.99$39.99
Wireless PIR Motion Sensor Included
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Everything you need included in one box!
Features
Main Features
NEW* Flexible Monitoring with 4G: (Self Monitor with No Monthly Fees or Opt-in for 24/7 Alarm Monitoring ($15/month with 1 Yr subscription/ no contract / cancel anytime).New* Optional SMS Alerts with a SIM Card (not included) To enable this feature, you’ll need a SIM card with an active talk/text plan from a mobile provider. *Note:* This feature requires a separate paid plan from your mobile providerNew Robust OS and Software plus Set up wizard and Free Continuous Updates /Multiple user access levels (1 Admin/ 5 User)Large 7 inch IPS Touch Screen /Next level interface design and Desktop placement (built-in stand) or Wall-mountedUp to 160 Accessories can be AddedBuilt-in Siren & Buzzer / Wireless Strobe Siren (plugs directly into outlet-no power cable)Arm & Disarm using App, Remote Control or Alexa & Google Assistant Voice ControlLow Battery Alarm Reminder / 24 hour back-up batteryResilient Sensors – lasts up to 5 years without changing batteries /Simultaneously use as entry sensor and entry chime
Whats Included? *All batteries are included
1 x Control Panel with 7″ Screen5 x Contact Sensors & 2 x Motion Sensors1 x Wireless Strobe Siren2 x Remote Controls
✅Flexible Monitoring with 4G Connectivity – Choose Self-Monitoring with No Monthly Fees, or opt in to 24/7 Alarm Monitoring (Canada only). Plans start at just $15/month with a 1-year subscription. No contracts — opt-in or cancel anytime* for total flexibility
📶 This panel can use a SIM card (not included) to receive SMS alerts directly. To enable this feature, a SIM card with an active talk/text plan from a mobile provider is required. This is an optional feature and will involve monthly fees charged by your cell provider.
✅Interactive Set-up Wizard – The wizard guides you step-by-step through the entire setup so your alarm system is configured correctly.
✅Continuous Updates – Maintain peak performance with regular, complimentary updates.
✅Next level Interface Design – HD 1024 x 600px anti-finger print touchscreen offers a responsive enhanced UI user experience.
✅Multiple User Access Levels – Features (1) administrator accounts with full access and (5) user accounts with limited access. Perfect for Airbnb , renters, guests or children who you want to lock out of system settings.
✅Scalability – Your security, your way: Scale up easily with room for up to 160 sensors, 6 controllers, 6 doorbells and 6 keypads! Perfect for Houses, apartments and Small Businesses
✅24 Hour Back-up Battery – Experience uninterupted security with our Wi-Fi alarm system’s 24 hour back-up battery.
✅SOS Button Feature – Get help as soon as you need it by pressing the panic button (SOS) to quickly sound the siren. The SOS button is conveniently on the display, App and remote control. once pressed it will notifiy anyone else who you have shared the alarm system to via app.
13 reviews for OSI Alarm System Gen 2 (4G), 11pc, DIY, Motion & Entry Sensors, Wireless Siren, Remotes, App & Alexa Compatible Self Monitor(No Monthly Fees) or 24/7 Alarm Monitoring (as Low as $15/mo)
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$169.98
MNRosado –
Surprising 433mhz low cost alarm system
This is a low cost Home alarm system. Which i though would be a waste of money. But it turned out to be a great system. Easy to configure, well built, brings a reasonable amount contact and motion sensors. My home is relatively large made of cement contruction. The 433mhz alarm system sensors performed very well. Sensor responeded immediately. I did order the 433mhz extender to assure my self sensors are getting the best signal. Cement and rebar is a tought cookie to Crack. But it’s working well, touch panel is very high end for this price range. Can’t complain for now let’s see how it holds up through time.
Jenny –
Worthy Security System
Great alarm set. Alarm is VERY loud. Easy to setup. Door sensors are cool. The only thing I wish is that the door sensors would audible say which door is open once you rename it in the app. Currently it just chime when opening (support only mentioned that I just chimes).Really good system for the money. Wanted to purchase another screen hub but it only comes in a set but the security for what it gives is really reliable. App works good and can even setup different scene mode (disarm, arm , home) on the app so that way it can be available on the Apple Watch for quick warming and disarming. Overall, really good product.
Isam Clark –
Good quality.
Perfect security system, easy to install, highly recommend it.
Dn –
Long term support?
The alarm system works well and I like it.The issue is the supplier or manufacturer seems to have limited inventory on Amazon and I wonder about long term support for this product. You can’t buy a lot of the accessories on Amazon and have to order from a website that ships from Canada into the US.
Eddie –
High Tech without the High Price
I don’t usually write a review but I felt I had to due to the fact that for several months I was looking to replace my Swann Security System and came across your product. After doing some research regarding this security system I am very impressed with the functionality as well as the ease of use which is really top notch and for the price you can’t go wrong. I really like that I can take it off my network and the power can go down and it is still working. I want to personally thank the team at OSI for creating such a great product. I can wait for what the software updates have instored. Another happy customer. Thanks Eddie
Isa Flo –
Easy to install DIY security system
Easy to install and works great! I now have motion sensors on entry, doors and windows. You can set the timer on delays before alarm goes off upon leaving or entrance. If you’re like me and don’t want any wires showing you’ll need a 12V DC transformer. Very satisfied with this purchase and ease of use.
Ernesto Escobar –
Great Product as Advertised
It Activates from Panel, Cel App, Remote control and Can Configure easily to sends Alerts via CelApp, SMS and Phone Call using a prepaid local area Cel Chip. You can configure every sensor with a name, so you know what door is open, no issues with sensor distance between 3 floor story. Can configure if you want alerts ehen door opens or not, Working perfect in Mexico
Rob K –
Stay away from this one!
5 months in and we loved this DYI alarm at first but not so much anymore! The doors used to beep when you open a door or window but now it has stopped. The batteries in the door and window sensors need to be changed often. The speaker on the touch screen is so distorted it sounds like it is blown. Customer service is non existent as it’s online and it just takes you through common problems. They do software updates but the latest update didn’t fix our problems. This is worthless to us at this point. I guess we just need to buy a different brand.Update on 12/01/25, One month after our not so good review I figured they may reach out to help correct these issues but still no customer service. As stated in original review stay away from this one!
Soxter –
I just set up this OSI Alarm System Gen 2 (4G) in my home, and I’m pretty impressed for what it is. If you’re like me and wanted something simple to install yourself without paying big monitoring fees forever, this is a solid choice.Setup & daily useOut of the box it feels well put together, and I liked that it has a 7″ touchscreen control panel with a clear, easy-to-use interface — it’s way nicer than fiddling with tiny buttons. The setup wizard walks you right through connecting the sensors and getting it all ready, so I had it up and running in under an hour.You can control everything from the Smart Life app on your phone — arm, disarm, and see alerts if something trips. It also works with my Google Assistant, which is nice if you want voice control. You do need to turn on the 2.4G system in your WIFI. I didn’t try 5G, just followed there recommendation. The system supports like 160 devices so if you decide to expand later it would be easy.You can add a SIM card (separate from the system) to get SMS alerts or even go with professional 24/7 monitoring if you want that extra peace of mind, but it’s totally optional or just use self-monitoring and get alerts on my phone whenever something triggers which is easier on the budgetIf you want a DIY alarm system that’s easy to install, doesn’t trap you in a contract, and gives you useful alerts on your phone, this OSI Gen 2 system is a great bang for your buck. It’s not super high-end pro gear, but for everyday home security it’s been easy and reliable.
David Blackburn –
I was sceptical. £169 for a smart wireless alarm? The beauty of Amazon is if doesn’t meet your expectations simply return it for a no arguments refund.On this occasion no need for that great return policy.When considering my purchase I considered ease of use. No good if people don’t set it because it’s too complicated. Subscription free. Monitor service can work out expensive and then there’s sometimes added extras to those charges. Expandable. Can I add more to it? Smart integration. Will it work with Alex or Google? Cameras? Can I add cameras?Set up was a breeze once linked to my 2.4Ghz network. I’ve read reports about people saying it’s not working. I’ve had issues with backwards compatibility before so luckily I have a router that has 2.4Ghz and 5Ghz capability. There’s a lot of new routers that don’t have 2.4Ghz so be aware!Go into your router wireless settings and see if 2.4Ghz is enabled.Set up of the sensors was a breeze too. I used the clear touch screen to set everything up. There’s a stack of informative instructions to get up and running.When an alarm is triggered a notification is sent via the smart life app so as long as you have mobile data your sorted. The mobile call works if you add a SIM card and there’s offers for a mobile package but it would have been nice to have a pre loaded sim in the kit with an introductory bundle. I’m sure you can get pre paid sim deals too but the sim package OSI offer weren’t that expensive at first glance.This kit comes with motion sensors. I don’t get motion sensors unless they are intended as a backup for perimeter sensors. With pets that like roam freely around the home the motion sensors weren’t installed. Would be good if two kit options were offered. One as it is and the other with no motion sensors just more window and door sensors for the same price.The plug in strobe light again not used. The panel sounder is very loud. The strobe sounder might be better designed as an external sounder? The control panel is inconspicuous when installed. I installed ours by the front door and both my wife and daughter didn’t even know it was there until I told them. Lovely slim panel not like the alarm control boxes of old. I wall mounted it and dropped the cable through the cavity behind and out to the power socket below. Would be nice to have a slightly longer USB to USB C power lead for more flexibility. I like it. Good quality, clear audio and very loud but above easy, really easy to set up. A tip:- wipe the contact mount surface with an alcohol wipe such as isopropanol cleaner to get the best adhesion for the sticky pads. I have this in my tool kit and boy do those pads stick firm. I’m now trying to get the system to do more. The smart life app has the promise to do more. I’m looking at skills such as when I pull up on the drive automatically disarm or when I leave home automatically arm or maybe have my blink cameras integrate with the system for external triggers. There’s been a spate of car thefts lately which spurred me into buying an alarm system as some homes have been broken into to get the keys so that external monitor would be good.
Hargo –
First time using a DIY system. After 6 months of research/ hesitating bought it on sale. Worked out well.Handy built-in chime feature dings when a door opens (can turn off). One annoyance, if you adjust the system volume, it changes the door chime volume and also the built-in alarm siren volume. Would be nice if these were separated, not that big of a deal, but just an FYI. External siren has its own volume level. Sirens could be louder. Best to place external one outside so your neighbours hear it.The system uses wifi, not 4G. Very easy to install/operate/use. Does NOT send text messages, but rather alerts via the app installed on your phone. If you want texts, there is an option to subscribe. The app alerts are working fine for us. App is missing some features. Can’t get very granular in the settings, but I think its similar across most DIY systems.Can be set to self arm/disarm on schedule, e.g. going to sleep and waking up in the morning.We looked for a few months as I mentioned, and it was kind of intimidating at first, but good choice. After installing it, good piece of mind. The newer 2nd Gen with touch screen (this one), much better than the older one. Overall happy we have it. Does its job.
Ben Ake –
After trying several so-called smart alarms, most turned out to be cheap, slow, and backed by terrible customer service. But the OSI Smart Alarm System Gen 2 is a different story—it actually works.Setup was smooth once I connected to 2.4GHz WiFi, and the Smart Life app sends alerts instantly. No frustrating subscriptions or hidden fees—just reliable security that I control from my phone, remote, or the touchscreen panel.Follow the directions!!! If you watch the install video, it’s super easy. I wouldn’t recommend setting it up on your own without watching—following the YouTube setup guide makes it fast and effortless.The alarm is loud, the hardware feels solid, and adding extra sensors or cameras is easy. The only complaint I have? I wish I bought this a long time ago!
C Marshall –
Really did like this alarm system, Simple panel but that’s all you need.Touch is so much better than the panel it was replacing and was refreshing to touch the screen and your touch been registered.Had an initial issue where I could not select the system code to change the code from default, support top class and replied within hours rather than days.After several factory restore it was the same but I eventually worked out you need to select a user then go back and you can now select the system code to change.Had everything setup and ready to be put into place, sensors ready, door contacts ready, new sim card was ordered and on its way.Decided to do a test with my 2nd phone sim card before fixing in place and putting senors and door contacts in place.Thought I had everything ready and did an alarm set off test, it worked fine but then I see notifications that the sim card aspect is an extra subscription service that you need to sign up for, sms and calls.I did receive a text message on my main phone but looking in the app I was asked to sign up for sms, I did also receive a call but it was declined on my main phone for some reason or another.I hate companies who hide additional charges for features, Amazon and others do it with door cameras.Expensive service, charges £26 for 30 days, my old system allowed sms and calls for no extra cost.Little bit of false advertising in the product description: Reason I have given 1 starNo Monthly Fees! There are absolutely no monthly fees, installation costs, or contracts required.Now fully factory reset and been returned for a refund.If you don’t plan on using a sim card, the system looks great, nice and easy to add sensors and it even registered a spare PIR Sensor I had from my other system.The panel siren is nice and loud, I didn’t even get to try the plug in siren as it wasn’t even installedproperly and that was the last sensor I had to add once I had it installed.Extremely disappointed with the false advertising and even worst the very expensive service charges.