Data center operators face multifaceted risks that require comprehensive solutions. Operational interruptions, often sparked by issues such as a breached perimeter or overheating equipment, can prove costly, with over half of major data center outages exceeding $100,000 and some surpassing $1 million, according to the Uptime Institute's 2024 Annual Outage Analysis.
Traditionally, different functions within data centers handle security in isolation—perimeter security for the Security Director, substation protection for facilities, and thermal monitoring for reliability engineering. However, a VP of Operations must ensure uptime across the entire site. Unified management of perimeter detection, electrical monitoring, alarm management, and rack inspections can preempt operational disruptions by recognizing and addressing issues promptly.
Perimeter Breaches and Critical Equipment
A breach beginning at the perimeter can swiftly escalate if an intruder targets critical components like the substation. While the security team investigates, the real impact on operations is visible through lost capacity and downtime. Integrating controls allows operators to manage risk more effectively and close gaps that arise when departments work siloed.
Early detection is crucial, as threats that penetrate deeper into the site leave less time for response
Data centers typically occupy expansive areas with low-light conditions, complicating conventional surveillance. Thermal imaging offers a solution by detecting heat signatures in complete darkness. Early detection is crucial, as threats that penetrate deeper into the site leave less time for response. A multilayered security approach employs systems like Flir R-190/R-290 radars alongside bi-spectral cameras to track and verify activity, providing operators with a diverse array of data to assess risks.
Monitoring Substations with Radiometric Thermal Cameras
Substations, vital to data center operations, are vulnerable points often less monitored than interior systems. The use of fixed radiometric thermal cameras enables continuous oversight of transformers and electrical connections, identifying abnormal temperature changes that could indicate equipment failure. This allows for proactive maintenance during scheduled windows, averting unscheduled outages.
Inside data centers, high-density racks generate significant heat in confined spaces, necessitating quick responses to cooling and equipment failures. Handheld inspections complement fixed thermal monitoring by allowing maintenance to examine assets from multiple angles. Flir's tools, like the i65 and Assetlink software, enhance these inspections with advanced analysis, while infrared windows enable safe assessments of energized equipment.
Combining Security and Operations
The underlying issue lies in organizational structure, not in the risk itself
Despite often being managed separately, thermal technology serves both security and operational functions. Different departments may purchase thermal cameras for varying tasks, yet they mitigate interconnected risks. The underlying issue lies in organizational structure, not in the risk itself.
As per Grand View Research, the data center physical security market was valued at $1.87 billion in 2023 and is anticipated to grow to $4.83 billion by 2030. Meanwhile, Mordor Intelligence expects the thermal imaging systems market to rise from $5.78 billion in 2025 to $8.71 billion by 2031. Despite appearing distinct, these markets address the same uptime challenges, aiming to detect and address emerging issues before they expand into major disruptions.
Coordinated Compliance Efforts
Increasing regulatory demands now favor a coordinated approach to maintenance. The 2023 NFPA 70B emphasizes documented electrical maintenance and thermographic inspections, merging inspection records and corrective actions into the broader facility maintenance processes. Operators should integrate existing systems into a cohesive reliability framework, encompassing perimeter protection, power monitoring, and compliance.
Flir offers a full suite of solutions from perimeter radar and thermal detection to the radiometric monitoring of internal critical equipment. Connecting these elements gives operators a comprehensive view of site risk and time to respond before issues escalate. Successful risk management requires viewing the data center environment as an interconnected whole, from the outer boundaries to the innermost racks.
For a data center operator, risk rarely comes down to a single system or department. It can begin with a cut fence, an intruder approaching a substation, an alarm no one trusted enough to investigate, or a rack that ran hot overnight.
The cause may be different, but the consequence is often the same: an interruption to operations that can be costly. More than half of significant data center outages can now cost a company over $100,000, and roughly one in five exceed $1 million, according to the Uptime Institute's 2024 Annual Outage Analysis.
Same operational risk conversation
The challenge is that the industry tends to sell protection the way it is organized internally: one function at a time, with perimeter security pitched to the Security Director, substation protection routed to facilities, and rack thermal monitoring and inspection left to reliability engineering. A VP of Operations, however, is responsible for uptime across the entire site, making the fence and the rack part of the same operational risk conversation.
Perimeter detection, electrical monitoring, alarm management, and rack inspections may fall under different departments, but they all serve the same basic purpose: identifying problems early enough to prevent them from affecting operations.
Other critical equipment
A perimeter breach, for example, often begins as a security event. If the intruder reaches a substation or other critical equipment, it quickly becomes an uptime issue. Security may investigate the incident, but the operational impact will be measured by lost capacity, service disruption, and recovery time. Bringing these controls into a single program gives operators a more complete view of the risk they manage. It also helps reduce the gaps that appear when each department plans, purchases, and operates its systems independently.
At the outer edge of a property, data centers can stretch for miles of dark, lightly staffed perimeter. Much of that darkness is by design. Many sites are built as low-light facilities to avoid adding light pollution to the surrounding area, which is good for neighbouring communities but leaves conventional cameras with little to work with. Thermal imaging removes that dependency, reading the heat signature of a person or vehicle in complete darkness. Detecting movement early matters because the farther a potential threat travels into the site, the less time an operator has to assess and respond.
Multilayered security approach
The solution can be a multilayered security approach, beginning with a radar system such as the Flir R-190/R-290 detecting movement as it approaches or crosses the perimeter. It works in concert with both the bi-spectral FH-Series AI thermal/visible cameras and the bi-spectral Elara DX-Series thermal/visible PTZ cameras to verify the activity and continue tracking it. Instead of relying on a single sensor or an isolated alarm, the operator receives multiple sources of information that help determine whether the event requires action.
Those detections can feed into Flir Latitude VMS, giving the control room a common view of the event. Flir Nexus® connects sensors and systems so that information gathered at the fence reaches the person responding.
Fixed radiometric thermal cameras
Moving deeper into the property, the substation is one of the most important points of exposure. The equipment feeding power to the data halls is essential to the operation, yet it is often less visible than the systems inside the building.
Fixed radiometric thermal cameras can continuously monitor transformers, electrical connections, and other energised equipment for abnormal temperature changes. While technicians could miss a loose or deteriorating connection during a visual inspection, an infrared camera detects the heat it produces well before the equipment fails. That allows the operations team to investigate and make repairs during a planned maintenance window rather than responding after an outage.
Energised electrical equipment
Inside the data hall, the available response time becomes even shorter. GPU-dense racks can draw several times the power of the traditional 8 to 12 kW rack, creating more heat in a smaller space. Under those conditions, a cooling issue or component failure that developed over several days could escalate within minutes.
Periodic handheld inspections also play an important role, as they allow maintenance teams to view assets from multiple angles and distances. Fixed thermal monitoring provides visibility between scheduled surveys, while handheld tools with route-based inspection capabilities, such as the Flir i65 and Assetlink software, support more detailed inspections, analysis, and documentation when a potential issue is identified. Onboard tools such as reference imaging ensure these handheld inspections result in repeatable, trackable thermal data, making it easier to identify changes over time and support repair decisions. When combined with safety equipment such as infrared windows, maintenance teams can help maintain uptime by safely inspecting energised electrical equipment.
Early fire detection
Security and operations are often managed separately, leading different teams to purchase thermal technology for different purposes. The security department may invest in thermal cameras for perimeter protection, while the operations team deploys thermal equipment for electrical inspections, early fire detection, and rack monitoring. Although these purchases are often made independently, they address closely related risks.
Simply put: the purchases come from different budgets because the organization is divided that way. The risk itself is not.
Thermal imaging systems
Grand View Research valued the data center physical security market at $1.87 billion in 2023 and projects it will reach $4.83 billion by 2030. Mordor Intelligence projects the thermal imaging systems market will grow from $5.78 billion in 2025 to $8.71 billion by 2031. These may appear to be separate markets, but operators experience them as parts of the same uptime challenge. Both are intended to reveal developing issues, provide enough information to act, and prevent a larger disruption.
Compliance requirements are also moving operators toward a more coordinated approach. The 2023 edition of NFPA 70B placed greater emphasis on documented electrical maintenance and thermographic inspection. Inspection records, identified deficiencies, and corrective actions are increasingly part of the facility’s broader maintenance and audit process rather than being managed informally or in isolation. None of this means operators need to replace systems that already work. It means they should view perimeter protection, power monitoring, interior surveillance, rack conditions, and compliance as part of a single reliability program.
Radiometric monitoring of critical equipment
Flir supports that full path, from radar and thermal detection at the perimeter to radiometric monitoring of critical equipment inside the facility. By connecting those capabilities, operators gain a clearer view of risk across the site and more time to respond before a condition escalates into an outage.
For most data center operators, the first step is not another purchase order. It is a change in perspective: seeing the path from the outer fence to the inner rack as one continuous reliability environment.
