AJK Locks supplies and installs Visonic intruder alarms for both residential and commercial customers. Whether you’re looking to upgrade an old system, or want to start from nothing with a brand-new solution, our engineers have received training and support directly from Visonic to ensure your system is installed without flaws.

We Fit Alarms  in Hemel Hempstead , Berkhamsted , Chorleywood , Chesham , Northwood , Pinner , Watford , Hatchend , Harrow , Stanmore , 

Bushey , Welwyn garden city , harpenden , hertford , Wheathamstead.

An Alarm that not only protects your property but also leaves your family feeling safe.

Whether you require a security system for a commercial property or a residential property, we can tailor a system which will suit your requirements. Our engineers can install both wireless and hard wired systems and once installed you can rely on our service engineers to keep your system in full working order.

Touch screen keypads can be fitted as an addition to the main panel powered by battery or mains.
User friendly and has a smart modern look to blend into your property.

visonic Alarms fitted by AJK LOCKS
Visonic Powermax complete installed by AJK LOCKS


All-in-one Professional Grade Wireless Security 

PowerMaxComplete is a professional-grade wireless security and personal safety solution especially designed to answer the needs of residential and small office customers, many of whom are disconnecting from the standard PSTN network.

Visonic Master 10 Installed by AJK LOCKS

Visonic Power master 10

PowerMaster-10 Triple Compact Wireless Security Alarm


PowerMaster-10 is a compact wireless home security and safety system. Using wireless technology that is highly secure, it delivers superior range, long battery life and unmatched wireless robustness.

Visonic pirs , door contacts and remote keypads fitted

Have an additional touch screen keypad installed in your hallway leavin the panel to be installed under the stairs

Alarms in Hemel Hempstead

The PowerMaster family is Visonic's cuttingedge line of professional wireless intrusion alarm systems for residential, small business and light commercial premises. It includes multiple wireless control panels targeting different applications and an extensive array of wireless peripherals, providing an unmatched combination of reliability, performance and advanced feature set.

Visonic Alarms Fitted by AJK LOCKS

All PowerMaster systems and peripherals are based on PowerG wireless technology, the most advanced wireless security technology available today. PowerG technology delivers unmatched detection accuracy, long-lasting reliability, system robustness and ease of use. Since its introduction in 2011, PowerG has proven itself in hundreds of thousands of security systems and devices installed in homes and small businesses around the world.


Mobile App

VisonicGO is the mobile app that delivers peace of mind to your customers – enabling them to control their home and business security wherever
they may be.
By seeing inside their home or business in near real time, they can make the right decisions about events and notifications – from anywhere, using their smartphone or tablet.
VisonicGO is part of the PowerMaster solution. The control panels are connected via IP connectivity.

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