Alarm Systems South Africa | Home & Business Security

Protect Your Home or Business With a Reliable Alarm System

Keep your property protected with professional alarm systems and security products from Digital21.

We supply alarm equipment for homes, offices, businesses and other properties, with solutions ranging from traditional wired alarm systems to modern connected security solutions.

Whether you are installing a new alarm system, upgrading an existing system or replacing an outdated control panel, Digital21 can help you choose the right equipment.

[Get a Quote]

Alarm Systems for Sale

Looking for an alarm system in South Africa?

Digital21 supplies security products from established alarm-system manufacturers, including Paradox, with solutions for different property sizes and security requirements.

Our alarm products can include:

• Alarm control panels
• Keypads
• PIR motion detectors
• Outdoor detectors
• Door and window contacts
• Wireless sensors
• Remote controls
• Alarm communication modules
• Expansion modules
• Sirens
• Batteries
• Accessories and replacement components

Paradox Alarm Systems

Digital21 supplies Paradox alarm equipment for residential and commercial security applications.

Paradox systems can provide a flexible foundation for a complete alarm installation, with compatible equipment available for different property sizes and requirements.

Depending on the system selected, you can build a security solution incorporating:

• Motion detection
• Door and window protection
• Outdoor detection
• Wireless devices
• Remote operation
• Alarm notifications
• Multiple zones
• Expansion modules
• Communication and monitoring options

Shop Paradox Alarm Products →

Choose the Right Alarm System

The right alarm system depends on the property and the level of protection required.

Property Size

A small home may require a different number of zones and sensors compared with a large house, office or commercial property.

Wired or Wireless

Wired systems can provide reliable permanent connections, while wireless devices can make installation and expansion easier in suitable applications.

Number of Zones

Consider how many doors, windows, rooms and outdoor areas need protection.

Indoor & Outdoor Detection

Depending on your security requirements, your alarm system can incorporate indoor motion detection as well as suitable outdoor detection devices.

Remote Access

Modern alarm systems can offer remote connectivity through compatible communication modules and applications.

If you’re unsure which alarm system you need, contact Digital21 and we can help you choose the appropriate equipment.

Alarm System Installation

Digital21 can assist with the supply, installation, configuration and maintenance of alarm systems.

Our services can include:

• New alarm installations
• Alarm system upgrades
• Alarm control-panel replacement
• Keypad installation
• Motion detector installation
• Wireless device installation
• Zone expansion
• Remote programming
• Communication-module setup
• Alarm troubleshooting
• System maintenance

Home Alarm Systems

A properly designed home alarm system can help protect your family and property by detecting unauthorised entry and triggering an alarm when a security zone is breached.

A typical home alarm installation may include:

• Alarm control panel
• Keypad
• Motion detectors
• Door contacts
• Outdoor detection
• Siren
• Backup battery
• Remote controls

The exact equipment required depends on your property and security requirements.

Business Alarm Systems

Businesses often require more comprehensive security solutions.

Digital21 can assist with alarm systems for:

• Offices
• Shops
• Warehouses
• Workshops
• Commercial buildings
• Small businesses
• Residential complexes

Larger properties may require additional zones, detectors, keypads and communication equipment.

Alarm Systems & Complete Security

An alarm system doesn’t have to operate on its own.

Digital21 can help combine alarm systems with other security technologies, including:

CCTV | Electric Fencing | Access Control | Gate Automation | Garage Motors | Intercoms

This allows your property to have multiple layers of security rather than relying on a single system.

Alarm Systems & Smart Home Automation

For customers looking for more than traditional security, compatible alarm systems can form part of a wider smart-home solution.

Digital21 specialises in security and home automation, allowing compatible technologies to work together where supported.

Your security system can potentially form part of a wider solution incorporating:

• Smart lighting
• Gate automation
• Garage door automation
• CCTV
• Access control
• Control4
• Clipsal C-Bus

Alarm System Installation Johannesburg

Digital21 provides alarm-system products and installation services in Johannesburg and surrounding areas.

We can assist with new installations, upgrades, replacements, programming and troubleshooting.

Contact us with details of your property and current alarm system and we can help determine the appropriate solution.

Frequently Asked Questions

How much does an alarm system cost in South Africa?

Alarm-system costs depend on the control panel, number of sensors, communication equipment, accessories and installation requirements.

Which alarm system is best for a home?

The best alarm system depends on the size of your property, the number of areas requiring protection and whether you require wired, wireless or connected functionality.

Are Paradox alarm systems good?

Paradox offers a range of alarm equipment suitable for residential and commercial applications. The correct model depends on the specific requirements of the installation.

Can I upgrade my existing alarm system?

In many cases an existing alarm system can be upgraded rather than completely replaced. Compatibility needs to be checked between the existing equipment and the new components.

Can an alarm system work during a power failure?

Alarm systems can use backup batteries to continue operating during power interruptions, provided the system has a suitable battery that is correctly maintained.

Can I control my alarm from my phone?

Some alarm systems support remote connectivity through compatible communication modules and applications.

Do you install alarm systems?

Yes. Digital21 can assist with alarm-system supply, installation, programming, upgrades and technical support.

Protect Your Property With Digital21

Whether you need a complete alarm system, replacement equipment or an upgrade to your existing security system, Digital21 can help.

[Shop Alarm Systems]

[Contact Digital21]

Digital21

The Home of Security & Home Automation

Security products. Smart-home technology. Professional installation.