Electronic fencing and other smart security from Ajax

In our previous article on Ajax systems, we went through the system’s more technical details and functionality. Now the company has released new products and it’s time to feel and squeeze in the new range. The following lines are my own reflection and experience of the new units available on the market.

Dual Curtain

What is new to me is the Ajax Dual Curtain. The product is built as an electronic fence to detect movements up to 15 meters in each direction on the respective sides of the unit. Each side has three lenses and it is possible to set the direction of one of the beams and how many beams need to be refracted to trigger an alarm.

The unit is intended to be placed between, for example, a door and window, in order to have a full-coverage shell protection on the outside of the property. According to the company, they have gone through millions of different patterns. They have analyzed them to distinguish what is light, weather, animals and humans to reduce the risk of false alarms.

When I unpack the device for the first time, I am shocked by the size of the device. Ajax systems has not skimped on the size of the product. With a dimension of 173 × 123 × 88 millimeters, we are talking about a device that stands out among alarm products. My first thought was that it was a tactical choice for the units to be seen and discouraged. The next thought was if the units become ugly and disturb aesthetically.


The set went literally in one minute physically with four screws. Technically, I just scanned the QR code on the back of the device, then it was adopted in the system. In the application there are a lot of settings to make. In addition to temperature, signal status and battery level, you can also set delays for when you come and go when handling alarms.


The function behind each control can be tested directly on the Ajax website to understand what they are used for. A link to the sliders is available here.

You also have the option to turn off a page’s sensors and set sensitivity, if they should always be active and if you want the anti-masking feature turned on. The latter can, for example, alarm if someone sprays the unit’s sensors.

DualCurtain Outdoor.jpg

The unit’s response time is instantaneous and so far I have not received any false alarms from the unit, despite all the weather changes this autumn. Apart from the size, I think this is a really good product and something I have not seen in the same design before. The price tag for Dual Curtain in Swedish stores is around SEK 2,300.

Motion Cam Outdoor

Finally, Ajax comes with an outdoor camera to its alarm system. It is an IP55-rated unit with a hood that can withstand temperatures down to minus 25 degrees Celsius. The device itself follows the company’s overall specifications and has the same standard as all their devices.

What worries me most is the life of the four batteries. Ajax systems promises a battery life of up to three years. Previous experiences with batteries and cold climates have not been as optimistic. Despite that, a battery-powered outdoor camera is in my case preferable, to avoid pulling long cables and to have a more flexible installation process.


Once again, the company has succeeded with the bravura of making me drop my chin. The outdoor camera is basically twice as big as the indoor model. This is explained by the fact that the outdoor camera is equipped with Dual Motion sensors, similar to those used in Motion Protect Outdoor. This in combination with the hood that protrudes like a cap to keep the unit free from raindrops that interfere makes the unit’s total size measured at 206 × 108 × 93 millimeters.

With a quick scan from the Ajax Pro application in the phone, the device is inserted into the system without any problems.


Because the communication is wireless and the device runs on battery power, both image size and quality are compressed into a format accordingly. With a resolution of 640 × 352 pixels at best, it still takes a few seconds before the images land on the phone. It is possible to identify if someone actually triggered the alarm, but not necessarily identify who, depending on weather and day conditions. However, the IR lighting that is built into the unit is above my expectations and gives a good picture at night.


The benefit I see with the product is to be able to quickly identify a possible false alarm, if I am not in the same place as the alarm when it is triggered. A large unit can also be seen in the distance and hopefully the thief chooses another house when they see the set up units. With a price tag of almost SEK 1,700 for a unit, I would have liked better picture quality.

Keypad Plus


In terms of design, the company retains the style from its predecessor, if now a little larger than the previous model. What distinguishes the products is the choice to use AA batteries, instead of AAA, as there is now a card reader in the panel. So for SEK 1,300, you get a larger unit with Desfire readers, compared to Keypad, which costs around SEK 1,000.

The card reader has also received support for Desfire cards and tags and is limited to it. For better or worse, if you ask me. I understand that technology is among the best when it comes to tag and card security. But as a consumer, it will be another tag that I need to carry, instead of using a tag I already use for other things. It would have been worth its weight in gold if the device had supported NFC. Then I would have had the opportunity to use my chip in my hand, the phone or the access tag I have for work, which I still always carry with me.

I would have liked to have seen the alternative as optional, potentially in combination with requirements for a PIN code to strengthen security.


The device allows you to set so that access cards do not have to enter a PIN code, but can activate and deactivate the alarm with only one tag against the Keypad reader. This makes it easier when staff are to be let in for work in the property, so that they do not have to remember a PIN code. With the tagging, you also get an overview of when the company arrived and when they left, so that there is a basis for, for example, the hourly invoice you have to pay.

It should be mentioned that I had some problems with my tags, or Keypad Plus. When I hold my tag against the Keypad reader, it only works eight out of ten times. I’m still trying to figure out how to hold my tag against the reader so that it always works, but have not succeeded yet. Whether this is a problem with the tag itself or a Keypad problem is unclear. One possibility is that my tags belong to a bad batch, but if that’s true I can not answer.


New Tags from Ajax systems come in both card format and tag with Desfire standard. The units can be paired with up to 13 different Ajax hubs at the same time and thus provide the opportunity to use the same tag for several properties. Adding new tags and cards to the system is easy. Just choose to add a new device, select the tag and name the tag and give it the role of either guest or connected user of the system. Then hold the tag against a Keypad Plus terminal and the registration is complete. Tags are SEK 79 each, while you have to pay SEK 199 per Ajax Pass.


To tie the knot and like the new units, I like the Dual Curatin, despite its size. Being able to build digital fences with minimal effort is both fun and easy. What detracts from the overall impression is that it is quite expensive. However, the cost is offset by its functionality and use if you ask me. It feels safe that not everyone can walk around the house without me becoming aware that it is happening. The setting options are large and I think the product lives up to its promise.

If I turn my thoughts to Motion Cam Outdoor, there is something to be desired. I personally think the picture quality could have been better. Especially considering that it is an expensive device, but also because it feels like today’s technology has come a long way. Compared to other devices in the same price range, Ajax needs to step up on the camera front. As a product, it still works, the IR sensors light up well at night and the motion detectors react lightning fast. In the Ajax Pro app, it is possible to choose how the units should act when moving, which gives me the flexibility to be able to monitor movements without necessarily triggering an alarm scenario with the siren.

I mentioned Keypad Plus design in the previous article. The design feels outdated, even though I got used to what it looks like. Technically, it works for what it is used for, but I would have liked to see something new when a device was still released with completely new functionality. The fact that the tags do not always respond also feels like a design miss, either by Keypad’s Desfire readers, or the antenna in the tag. As previously mentioned, I had also wanted to see the choice of other standards to reduce the number of tags and cards to carry around.

Tags feel a bit plastic but have a perfectly okay price for being Desfire tags. It is a good way to distribute access to craftsmen without having to give them a code for the alarm system. At the next purchase, I will test a Pass card, to see if I can have it in my wallet and alarm the system without having to pick out the card.

Source: SweClockers by www.sweclockers.com.

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