All calls received at the central station are answered by a trained experienced operator without having to select department options.

The Central Station operators are ready  24/7  to dispatch emergency responders when the need arises. Trained for both commercial and residential alarm systems, each alarm scenario is examined thoroughly to ensure the proper actions are taken and that every communication is accomplished with the utmost efficiency.

Fire Alarms

As an Underwriters Laboratories Central Station we offer fire alarm monitoring services to provide peace of mind to home and business owners.  Supervisory signals for sprinkler malfunction and trouble signals indicating electrical malfunction are relayed to the appropriate contacts. To comply with the U.S. National Fire Alarm Code, we can also issue a certificate or placard, establishing third-party verification of its services.

Video Monitoring

EMERgency24 brought video monitoring to the industry forefront  being the first company to synchronize the alarm signal with the video at the central station. Since then, EMERgency24 has developed several ways to incorporate video into a security system that best serves the end user. These include Video Verification, Video Guard, Video Guard Tour & Video Gate.
Learn more about video monitoring


Open/Close Supervision

Open/Close Supervision service enables business owners and managers to track  a YEAR of alarm user activity with account access on the Central Station web site.

Managers can be alerted when a system has been disabled or armed outside of specified hours. 

Two-Way Voice

Two-Way Voice (TWV) capability allows the central station  monitors to initiate a conversation over a two-way communicator at the home immediately after the receipt of an alarm signal. The operator will announce that they have received an alarm signal and attempt to discuss the situation with the homeowner.
If there is no answer, the operator will repeat that they received an alarm and listen again. If there still is not a response, the operator will process the signal in accordance with the alarm condition’s specified callback option, as defined by the security dealer.

For alarm owner safety, Hold-up and Panic signals result in a "Listen-in Only" response by the operator, meaning the operator will not speak. Should the operator hear anything that may be relevant to the police, this information is immediately relayed to the authorities when reporting the alarm.


Autotesting verifies alarm system connection to the central station by transmitting a test signal at a specific time. The alarm system owner will be notified should the expected "autotest" signal from your system. Not be received.


Emergency Call

Emergency Call Button auto dialer phone monitoring service that is ideal for elevators, parking garages, open campus space or stairwells to provide a means of calling for emergency help should it ever be needed.

Environmental Monitoring

Whether it is for a home or business, the detection of potential environmental trouble can save irreplaceable assets and minimize headaches for end users who would otherwise have much bigger problems to deal with had the situation gone unnoticed.

  • Gas Detection – Carbon Monoxide/Hydrogen/Natural Gas
  • Temperature: Monitor highs and lows within area or whole facility.
  • Humidity: Track the level of moisture in the air – highs and lows.
  • Chemicals: Alert end-users of chemical conditions – even the absence of a chemical.
  • Water: Can minimize extensive damage to a facility

Mechanical Failures

When the your customers’ life safety or assets are dependent upon the continued operation of mechanical devices, EMERgency24 has the capability to immediately inform onsite personnel and others from a call list about interruptions so that these situations have minimal impact.

Detection Systems & Service, Inc. 17W725 Butterfield Rd, Suite D, Oakbrook Terrace, IL 60181
Ph: 630 705 9585 | Fx: 630 705 9565


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