NEW!
THERMAL BODY TEMPERATURE
DETECTION SOLUTIONS

Instant + Accurate Body Temperature Alerts

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Custom security solutions protecting the ones you care about most

From schools to healthcare, Greatline offers State-of-the-art Security technology and installation for any-size project

Free Consultation

Providing Security and Peace of Mind to Homeowners

Your home is your castle, protect it 24/7 with real-time monitoring by licensed professionals. Call today to learn about options tailored to fit your needs and budget.

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Advanced Access Control & Intrusion Systems

Manage traffic and protect the people in your facility with key pads, card readers, activity reporting, remote access, and more.

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We are the experts for all your cabling needs

The performance and health of your business relies on your IT infrastructure

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28

Years In Business

600+

Happy Customers

Thermal Temperature Detection Solutions in Chicago, IL

Many businesses are now contemplating installing temperature detection solutions near the main entry of their facility to prevent the introduction and spread of the Coronavirus.

These temperature detection zones require reliable, fast, effective ways to measure human body temperatures and to identify those with abnormal readings so they can be pulled aside for further evaluation or refused access.

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Thermal detection camera system

Key Industries We Serve

Education Security

Now more than ever, security is a grave concern in our schools. An integrated security solution can help keep children safe, working to ensure no one with unauthorized access enters a school or classroom.

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Business Security

Protect your employees, property, and assets from theft, vandalism, and intrusion. We work with small and large business in Chicago, IL to design, install, and service fully-integrated customized solutions, no matter the type of industry or your unique threats.

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Healthcare Security

With advances in technology, video systems that were once solely intended to provide for loss prevention and risk management are now capable of much more and have a far greater impact to the bottom line.

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Home Security

We understand the importance of protecting your loved ones. We’ll design a customized system to keep your family safe from intruders, burglars, and other criminals. We offer security cameras, alarm systems, and controlled access entry for your whole property.

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Secure and Grow Your Business


Call Greatline Communications today for a trustworthy and convenient experience, bringing security into your area home or business.

Security Experts You Can Trust

Our unique process designed with the customer in mind

1

Initial Call

We understand how overwhelming it can be to make the first phone call for security solutions, especially when you may not have much background on the subject. There’s no need to worry, our technicians in Chicago, IL will guide you through every step to gain a better understanding of your options and the proper solutions to fit your needs.

2

Consultation & Estimate

Every business has unique security needs. Before you ever sign a contract, we go over your security concerns and conduct a site walkthrough to identify any areas of vulnerability. Our expert technicians will create a security plan and present an estimate providing a range of customized and cost-effective solutions.

3

Installation & Training

Our installation technicians are highly trained to get the job done fast. We’ll work with your schedule to make sure the job is done quickly and with minimal interruptions to your daily schedule and operations. After installation we'll train you on how to use it correctly and we won't leave until you're comfortable with your new system.

4

Follow-up & Support

We will follow up with you directly to make sure that the security system is meeting your needs and answer any questions you have about the functionality and operation of your new system. From there, our support team in Chicago, IL is always available to provide maintenance and support for the life of your system.

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Powerful Video Analytics - Included

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Get more from your video security systems with amazing analytic capabilities. They can help save disc space, send intelligent alerts, provide email notifications and more!

  • Tamper Detection
  • Intrusion Detection
  • Line Crossing
  • Object Removal
  • Audio Exception Detection
  • Unattended Baggage
  • Defocus Detection
  • Face Detection
  • Scene Change Detection
  • Object Counting
  • Region Entrance/Exiting
  • Heat Mapping

Give Us a Call to Schedule Your Security Consultation

708-982-7539