Maintaining continuous uptime, efficient cooling, and a safe operating environment is critical for modern data centers. Sigma Hellas Ltd. provides non-invasive monitoring, diagnostic, and safety solutions designed specifically for critical infrastructure and data-center applications.

Our solutions help data-center operators detect problems early, optimize cooling performance, improve personnel safety, and reduce the risk of unplanned downtime.

Our key solutions include:

1. Liquid Cooling & Airflow Monitoring

• Ultrasonic clamp-on flow measurement for chilled-water, liquid-cooling and CDU circuits, with no pipe modification or process interruption.
• Monitoring of high-density AI cooling infrastructure, including CDU loops.
• Real-time flow and temperature measurements for thermal-efficiency and energy-performance monitoring.
• Airflow monitoring for CRAC/CRAH systems, including fan and filter diagnostics.
• BMS integration through analogue outputs for continuous monitoring and alarm management.

2. Gas Detection & Electrical Safety

• Refrigerant/F-gas leak detection for chiller and cooling systems.
• Hydrogen monitoring in UPS and battery rooms.
• CO₂ and oxygen monitoring in generator rooms, substations and other critical areas.
• Automatic BMS integration for ventilation and safety responses.
• Portable multi-gas detection and thermal imaging for electrical inspection, confined-space assessment and preventive maintenance.

3. Advanced Leak & Moisture Detection

• Acoustic detection and localization of hidden leaks in chilled-water and fire-main systems.
• Non-invasive moisture detection in floors, walls and equipment areas.
• Early identification of HVAC condensation, groundwater intrusion and piping problems.
• Post-incident moisture verification before equipment or areas are returned to service.

Key benefits for Data Center Operators

• 24/7 early-warning capability
• Minimal or zero operational downtime during installation
• Improved cooling and energy efficiency
• Predictive maintenance and reduced operational risk
• BMS integration and centralized alarm management
• Enhanced personnel and electrical safety
• Early detection of water, moisture, gas, airflow and thermal abnormalities

These technologies can be deployed as stand-alone monitoring systems or integrated into existing BMS/critical-facility management systems, making them suitable for both new data-center projects and existing operational facilities.