The alarm system is excellent - high quality components and App. I was easily able to install it myself with assistance, within an hour or so for each enquiry, from the outstanding Ajax support team.... See more
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I have a fairly common house in Sweden although on the larger side. I have had alarm-system for years but eventually I got feed-up on the cost. Started to scout for a new & found Safeland, the Sw... See more
Ajax has the best technical support of all security manufacturers with 24/7 support. They helped me out of so many jams with their expertise and knowledge. They connected to my PC and found what I w... See more
Was easy to install ,love the app to control my alarm easy to use Had alarm over six months and very happy with it, battery life so far excellent It is not made in China which is good for reliab... See more
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Company details
Information provided by various external sources
Ajax alarm system — The most awarded wireless security system in Europe
Contact info
Sklyarenko 5, 04073, Kyiv, Ukraine
- hello@ajax.systems
- ajax.systems
4.8
Excellent
11K reviews
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Unreliable sensors and poor customer service
Devices are unreliable and Ajax don't seem to care. Ajax have no interest in supporting their products outside their EU mandated and strictly enforced 2 year warranty policy.
Had several alarm sensors installed. One started malfunctioning after about a year. Unfortunately, I naïvely gave Ajax the benefit of the doubt and I disabled it believing I could restore or remedy the problem at a later stage. Then a second device started malfunctioning. The company I bought the sensors from had ceased trading. After finding this out I informed Ajax directly of the issues less than 2 months outside the 2 year warranty window. Their response was disappointing. They were quick to respond to messages but made very burdensome requests to test the devices, e.g. test in a light proof box for several hours in the hope the device rights itself. They also directed me to enable back door access to my space which they later said could not identify and diagnose the issues. That is hard to believe. Why request access in the first place?
All in all in my experience Ajax sensors will go wrong, if you buy hope they go wrong within 2 years and you notify Ajax immediately. After notifying they will ask you to jump through hoops to confirm malfunctions, and then provide little to no tangible help. For example, suggesting buying a replacement device or a full replacement service from a currently trading company is not helpful.
Edit with more
The device was bought in March 2023. The issue was reported to Ajax in May 2025 after learning the original seller ceased trading (not immediately obvious until their website went offline). My correspondence outlines an issue and that it had already been happening for some time.
Hi,
I am successfully using many Ajax alarm products. However I am having recurring issues with one CombiProtect sensor of the several installed in our house.
This one device triggers incorrectly and too frequently. I have tried swapping it to other locations and adjusting the configurations of the device, e.g. lowering the sensitivity. However nothing has been successful and I have resorted to disabling it long term.
I was wondering if you could try help resolve the issue(s) with this sensor? Its QR code id is [redacted id].
I received the following response. I mentioned in the initial correspondence that I had tried the device in multiple locations, with multiple configurations, i.e. low detection sensitivity, and had resorted to disabling it. After detailing this and providing the id, the requests to "understand which of sensors is being triggered and what exactly causes it or may potentially cause it" did not make sense as Ajax had the id and I had already said I had tried several locations and configurations. So as you can see there is bureaucracy for the sake of frustrating the customer here.
Thank you for lettings us know about your situation!
We kindly ask you to give us few insights about your current situation:
1. Share with us screenshots from your Ajax application of alarm notifications being sent from your CombiProtect.
2. Share with us screenshot of your CombiProtect status.
3. Share with us a short video that indicates an example of alarm being triggered.
It is vital for us to understand which of sensors is being triggered and what exactly causes it or may potentially cause it.
April 4, 2026
Unprompted review
Reply from Ajax Systems
Dear Paddy!
Ajax, along with every single department and team, strives to uphold the highest possible standards so that all our customers can be confident that their property is secure.
We need to receive constructive and meaningful feedback from our users, both regarding the system’s performance and their interactions with our company in the event of any issues requiring contact with Ajax.
We would like to note the following:
1. You contacted us on 23 May 2025 regarding the issue that your CombiProtect sensor had started generating false alarms on this device.
2. We would like to point out that, in order to investigate the issue as thoroughly as possible, we requested necessary additional information, namely:
- screenshots from your Ajax application showing alarm notifications being sent from your CombiProtect
- a screenshot of your CombiProtect status
- a short video demonstrating an example of an alarm being triggered
We would like to emphasise that the information requested at the time of the enquiry on 23 May 2025 was crucial for understanding the issue and is not a bureaucratic formality, as certain data that could guide us and the recommendations we provide can only be implemented by the system user. Unfortunately, we did not receive a response at that time, and after two further emails requesting this information to assist you with this matter, we received no feedback.
3. Instead, you returned to us on 4 April 2026 with the necessary information that could confirm the device’s malfunction; that is, 10 months had passed since the initial enquiry, by which time the device’s warranty had expired.
The two-year warranty period for Ajax sensors is the optimal timeframe for confirming the absence of manufacturing defects and the stability of electronic components, allowing the manufacturer to guarantee the full technical serviceability of the devices for a period that typically exceeds the standard discharge cycle of standard batteries, thereby highlighting the high reliability of the hardware.
As the warranty period had already expired at the time the fault was confirmed, a replacement under warranty from the manufacturer is not possible; that is why we advised you to discuss this with your retailer or another partner in the region.
Kind Regards,
Max Brin
Great company and great product
My go to Alarm system for domestic and commercial alarm installation. System is super easy to install and customers love the usability of it. Best of all is the technical help, always there even on the weekends and public holidays when small installation companies are working and need help. Highly recommended product and company
April 5, 2026
Unprompted review
Reply from Ajax Systems
Hello Tristan,
Thank you for your feedback and for sharing your experience. We’re thrilled to hear that our system is your go-to choice for both domestic and commercial installations, and that customers appreciate its usability. It’s also great to know that our technical support has been reliable, even on weekends and public holidays.
With best regards,
Max Brin
High price and high quality!
April 5, 2026
Unprompted review
Reply from Ajax Systems
Hello Anders,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you recognize the high quality of our system, even if it comes at a higher price.
With best regards,
Max Brin
Clear advice from Ajax Support
The advice received from Ajax Support on a technical issue was very clear and concise and easy to understand a great help. Recommended
April 5, 2026
Unprompted review
Reply from Ajax Systems
Hello Alan,
Thank you for your feedback and for sharing your experience. We’re glad to hear that the advice from our Support team was clear, concise, and helpful, and we appreciate your recommendation.
With best regards, Max Brin
Great product, amazing support
Been using Ajax for a while — motion detectors, DoorProtect, leak detectors, automatic valve shut-off. Everything works exactly as it should, hardware feels premium.
The customer support is what really stands out — fast, efficient, straight to the point. No waiting, no runaround.
Highly recommend.
April 5, 2026
Unprompted review
Reply from Ajax Systems
Hello Olia,
Thank you for your feedback and for sharing your experience. We’re glad to hear that both the system and the hardware meet your expectations, and it’s especially rewarding to know that our customer support made such a positive impression.
With best regards,
Max Brin
Prompt relevant responses
Prompt relevant responses. Reading my posts carefully and correctly. Good detailed suggestions to solve problems.
April 4, 2026
Unprompted review
Reply from Ajax Systems
Hello Jeremy,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you appreciate the prompt, relevant, and carefully considered responses, as well as the detailed suggestions provided to solve issues.
With best regards,
Max Brin
Reply from Ajax Systems
Hello Mark,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you found our customer service excellent.
With best regards,
Max Brin
This alarm system works perfectly and…
This alarm system works perfectly and is very user friendly through the APP.
Unfortunately we have an old HUB that doesn't allow new features, but Ajax Support Center was very helpful in guiding us appropriately to an upgrade.
Thank you Support!
April 2, 2026
Unprompted review
Reply from Ajax Systems
Hello Françoise,
Thank you for your feedback and for sharing your experience. We’re glad to hear that the system works perfectly and is user-friendly through the app. It’s also great to know that our Support Center was able to assist you effectively with the HUB upgrade.
With best regards, Max Brin
The overal experience is decent
The overal experience is decent, the interface is simple and clear. The UI needs to be improved. Some buttons are too small and can be tapped by mistake, also some of the options are not very clear - sometimes I am wondering what is the purpose of a given option. I miss an ability to clear the old notiffications.
April 2, 2026
Unprompted review
Reply from Ajax Systems
Hello Alexander,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you find the interface simple and clear overall, and we truly appreciate your detailed suggestions regarding UI improvements. Your comments about button sizes, clarity of options, and the ability to clear old notifications are very valuable, and we will pass them on to our development team for further consideration.
With best regards, Max Brin
Great Experience
I’ve had a really good experience with Ajax Systems, but what stood out most was their customer service team. From the first interaction, they were responsive, knowledgeable, and actually took the time to understand the issue rather than just giving a generic answer.
What I appreciated most was how quickly they followed up and stayed on top of things until everything was fully resolved. It didn’t feel like I was being passed around or brushed off there was clear ownership and a genuine effort to help.
It’s rare to come across support teams that combine technical know-how with that level of professionalism and care. Definitely gives you confidence in the product and the company behind it.
April 1, 2026
Unprompted review
Reply from Ajax Systems
Hello Mubeen,
Thank you very much for your detailed feedback and for sharing your experience. We truly appreciate your kind words about our customer service team — it means a lot to us to know that their responsiveness, expertise, and dedication made a positive impact.
We’re especially glad to hear that you felt supported throughout the entire process and that the issue was followed through to full resolution. Providing clear, consistent, and professional assistance is something we continuously strive for.
Your feedback gives us great motivation to keep improving both our products and our service.
With best regards,
Max Brin
Reply from Ajax Systems
Hello Spyros,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you received fast and accurate assistance in resolving your issue.
With best regards,
Max Brin
Great security system
Great security system and so simple to set up and use
March 31, 2026
Unprompted review
Reply from Ajax Systems
Hello,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you find the system both simple to set up and easy to use.
With best regards,
Max Brin
Good system and great technical support…
Good system and great technical support to discuss future extensions.
Timely and comprehensive support!
March 29, 2026
Unprompted review
Reply from Ajax Systems
Hello,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you’re satisfied with both the system and the support, especially when planning future extensions.
With best regards,
Max Brin
For us a perfect system with professional service
For us a perfect system to protect our house, easy to handle and highly reliable. I had some problems with the desktop app for windows 11. I got help very quickly with patient and polite mails on Sunday late afternoon-early evening. For us it is good to know to have professional partners especially in rough times. The service is really great.
March 29, 2026
Unprompted review
Reply from Ajax Systems
Hello Jost,
Thank you for your detailed feedback and for sharing your experience. We’re truly glad to hear that the system meets your expectations in terms of reliability and ease of use, and that you felt well supported by our team—even during the weekend.
We also appreciate you mentioning the issue with the desktop app for Windows 11. Your feedback helps us improve, and we’re happy that our support team was able to assist you promptly.
With best regards,
Max Brin
system very intuitive…
I found my Ajax Hub2+ alarm system very easy to install and customize. It's very user-friendly and intuitive to use from my smartphone, and I plan to equip my other residence with the same system soon.
September 15, 2025
Unprompted review
Reply from Ajax Systems
Hello Pascal,
Thank you for your feedback and for sharing your experience. We’re glad to hear that you found the system easy to install and user-friendly, and it’s great to know you’re considering using it in another residence as well.
With best regards, Max Brin
Great assistance
Very fast response from the customer support and helpful.
March 26, 2026
Unprompted review
Reply from Ajax Systems
Hello Paolo,
Thank you for your feedback! We’re glad to hear that our customer support was fast and helpful. Your kind words are greatly appreciated.
Best regards,
Max Brin
AJAX support is simply amazing
AJAX support is simply amazing. They answer all my questions quickly and thoroughly. They're always there to help. These are the reasons why I continue to trust them. Furthermore, their products—the ones I currently have installed—are very accurate.
David, from Barcelona.
March 25, 2026
Unprompted review
Reply from Ajax Systems
Hello David,
Thank you for your kind feedback! We’re delighted to hear that our support team has been helpful, quick, and thorough in answering your questions. It’s wonderful to know that our products continue to meet your expectations and that you trust us.
Best regards,
Max Brin
Very fast responses from the helpdesk
Very fast responses from the helpdesk! They even understood a question in Dutch aften translation.
March 25, 2026
Unprompted review
Reply from Ajax Systems
Hello Arjen,
Thank you for your feedback! We’re glad to hear that our helpdesk was able to respond quickly and understand your question even after translation from Dutch. Your kind words are greatly appreciated.
Best regards,
Max Brin
Can't fault this company with their…
Can't fault this company with their hardware or support. Really amazing.
March 24, 2026
Unprompted review
Reply from Ajax Systems
Hello,
Thank you for your kind feedback! We’re thrilled to hear that you are satisfied with both our hardware and support. Your words mean a lot to us and encourage us to keep delivering excellent products and service.
Best regards,
Max Brin
My only problem with ajax security is…
My only problem with ajax security is that it has no programs to activate the system daily or weekly
March 24, 2026
Unprompted review
Reply from Ajax Systems
Hello,
Thank you for your feedback and for sharing your experience with our system. We would like to clarify that our system does support scenarios that can be configured to activate the system on a schedule. For guidance on setting this up, please contact our support team—they will be happy to assist you.
With best regards,
Max Brin
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