Ajax vs. ADT: Which Security System Is Right for Your Home or Business?

If you're shopping for a new security system, you've probably come across two very different options: Ajax and ADT.

ADT is one of the most recognized names in home security, with more than a century in the industry. Ajax is a newer entrant in North America but has earned a reputation worldwide for its modern wireless technology, elegant design, and professional-grade performance.

So which system is right for you?

The answer depends on what you value most. If you're looking for a professionally installed system with long-standing brand recognition, ADT may be a good fit. If you want cutting-edge wireless technology, flexible installation options, and premium security equipment, Ajax deserves a serious look.

Quick Comparison

Feature	Ajax	ADT
Wireless Technology	Professional encrypted Jeweller radio technology	Varies by equipment generation
DIY Installation	Yes	Limited (most systems professionally installed)
Professional Installation	Available through authorized dealers	Yes
Mobile App	Excellent	Excellent
Professional Monitoring	Optional through Alarm365 or self-monitoring	Available and commonly bundled
Long-Term Contract	Not required in many setups	Often available with service agreements depending on package
Home Automation	Extensive	Available
Indoor & Outdoor Cameras	Yes	Yes
Commercial Security	Excellent	Yes
Fire & Life Safety	Yes	Yes
Expandability	Excellent	Good

Installation

Ajax

Ajax was designed from the beginning as a wireless security system. Most sensors install in minutes using the included SmartBracket mounting hardware, and adding a new device is as simple as scanning its QR code with the Ajax mobile app.

Whether you install it yourself or hire a professional, the process is fast, clean, and requires little or no wiring.

ADT

ADT traditionally relies on professional installation. Depending on the package you choose, installation may involve scheduling a technician and paying installation fees. Some newer ADT offerings support self-installation, but many customers still choose professional setup.

Equipment Quality

Ajax is known for sleek European industrial design and a broad lineup of professional security devices, including:

• Motion detectors

• Outdoor intrusion sensors

• Door and window sensors

• Smoke, heat, and carbon monoxide detectors

• Water leak detectors

• Indoor and outdoor sirens

• Video cameras

• Network Video Recorders (NVRs)

• Smart relays and automation devices

Every component is designed to work together through a single ecosystem using encrypted wireless communication.

ADT equipment varies depending on the package and technology being installed, and available hardware can differ by market and service offering.

Monitoring

Both Ajax and ADT offer professional alarm monitoring, but the approach is different.

ADT is well known for offering professionally monitored security services as part of its security packages.

Ajax provides greater flexibility. Customers can choose professional monitoring or self-monitoring using the Ajax mobile app. For customers who want 24/7 protection, Shop Ajax Security partners with Alarm365, an authorized monitoring provider offering UL-listed central station monitoring by certified operators.

With Alarm365 monitoring, your Ajax system can provide:

• 24/7 professional alarm monitoring

• Fast emergency dispatch when an alarm is verified

• Mobile app notifications and remote system control

• Professional support from a U.S.-based monitoring partner

• Flexible monitoring without being locked into traditional long-term service agreements

Whether you install the system yourself or have it professionally installed, you can enjoy the benefits of a modern Ajax security system backed by experienced monitoring professionals.

Contracts and Flexibility

One area where many buyers compare systems is long-term commitment.

Depending on the package and service selected, ADT customers may enter into a monitoring agreement.

Ajax equipment is typically purchased outright, giving customers greater flexibility in choosing professional monitoring through Alarm365 or self-monitoring using the Ajax app.

Mobile Experience

Both systems provide modern mobile apps that allow you to:

• Arm and disarm your system

• Receive instant alarm notifications

• Check device status

• Manage users

• View camera events (where applicable)

Ajax is particularly well regarded for its clean interface, fast notifications, and detailed device management.

Home Automation

Ajax supports a wide range of automation capabilities, including:

• Smart relays

• Lighting control

• Electric door locks

• Garage doors

• Gates

• Water shutoff valves

• Custom automation scenarios

ADT also supports smart home integrations through compatible products and service packages.

Business Security

While many people know ADT for residential security, Ajax has become increasingly popular for commercial applications such as:

• Retail stores

• Offices

• Warehouses

• Medical clinics

• Schools

• Restaurants

• Churches

• Multi-tenant buildings

Its long wireless range, commercial-grade reliability, and extensive product lineup make it an excellent choice for businesses of all sizes.

Which System Should You Choose?

Choose Ajax if you want:

• Professional-grade encrypted wireless technology

• Flexible DIY or professional installation

• Modern industrial design

• Extensive outdoor protection

• Commercial-grade capabilities

• Flexible monitoring options

• Easy system expansion

• No requirement for a long-term monitoring contract

Choose ADT if you want:

• A long-established security provider

• Traditional professionally installed solutions

• Monitoring packages from a nationally recognized company

Frequently Asked Questions

Is Ajax better than ADT?

Neither system is universally "better." Ajax emphasizes advanced wireless technology, flexible deployment, and a wide range of professional-grade devices. ADT offers established monitoring services and strong brand recognition. The best choice depends on your priorities and security needs.

Can Ajax be professionally monitored?

Yes. Shop Ajax Security offers professional monitoring through our trusted monitoring partner, Alarm365, providing UL-listed central station monitoring and fast emergency response.

Can I install Ajax myself?

Yes. Ajax systems are designed for simple installation while also supporting professional installation by authorized dealers.

Is Ajax suitable for businesses?

Absolutely. Ajax is used in homes and a wide range of commercial environments including retail stores, offices, warehouses, schools, restaurants, churches, and healthcare facilities.

Explore Ajax Security Systems

If you're looking for a modern security platform that combines elegant design, advanced wireless technology, and flexible monitoring options, explore our complete selection of Ajax products.

Whether you're protecting a home, business, or commercial facility, our team can help you design the right system for your property. We can also connect your system to professional 24/7 monitoring through our trusted partner, Alarm365, giving you the confidence that your property is protected around the clock.