REL-iON™ Mission Critical Monitoring System
Early Warning Monitoring for Mission-Critical Applications
Monitoring System is a modular sensor platform designed to detect potential failure conditions in mission-critical environments before a fire event occurs.
Developed to support applications such as Battery Energy Storage Systems (BESS), switchgear rooms, and data infrastructure environments, REL-iON™ provides multi-point monitoring for early-stage risk identification—helping mitigate conditions that may lead to thermal runaway events.
As part of KiddeFenwal’s Specialty Detection portfolio, REL-iON™ complements detection, control, notification, and suppression solutions within an integrated fire protection strategy.
A Multi-Stage Risk Mitigation Approach
REL-iON™ supports a layered approach to hazard mitigation:
STAGE 1 – Prevention
Continuous monitoring of environmental and operational factors including:
- Temperature
- Humidity
- Water leaks
- Airflow
- Vibration
- Corrosion
- Solid contaminants
STAGE 2 – Detection
Prior to a full thermal runaway event, lithium-ion batteries may vent gases due to internal pressure buildup. REL-iON™ supports detection of:
- Volatile Organic Compounds (VOCs)
- Carbon Dioxide (CO₂)
- Hydrogen (H₂)
Hydrogen detection is especially critical in liquid-cooled battery environments, where gas release may precede visible failure.
REL-iON™ products are intended as early warning sensors for information and maintenance purposes. They are listed to codes and standards other than UL 268 and UL 521 fire detection standards.
Key Advantages
- Modular Sensor Architecture
Supports deployment of over 63 sensor types within a unified platform. - Early Off-Gas Detection
Identifies venting events before visible smoke or flame develops. - Designed for BESS and Critical Infrastructure
Optimized for lithium-ion battery applications and other high-value assets. - Integrated Fire Protection Strategy
Complements Kidde Fire Systems detection, control, and suppression solutions.
- Approved Control Unit Compatibility
Approved for use with Kidde Fire Systems conventional and addressable control units. - Expanded Connectivity
Supports data retrieval via:
• SNMP
• Modbus TCP
• MQTT (IoT cloud integration)
• RS-485 (Modbus RTU) on select sensors
Applications
REL-iON™ is designed for mission-critical and high-value environments, including:
- Battery Energy Storage Systems (BESS)
- Switchgear rooms
- Data centers
- Network infrastructure
- Electrical rooms
- Wind turbines
- Industrial process environments
The platform’s adaptable architecture enables customization for both battery-specific and broader asset monitoring applications.
System Architecture
A typical REL-iON™ deployment may include:
- Modular monitoring base unit
- Multi-sensor inputs
- Off-gas detection sensors
- Environmental sensors
- IP-based communication interface
- Integration to fire alarm control units
The system supports integration into a broader Prevention-Detection-Control-Notification-Suppression ecosystem.
Connectivity & Integration
REL-iON™ is designed for seamless integration into facility monitoring systems and building management systems (BMS). Data can be accessed or transmitted using:
- SNMP
- Modbus TCP
- MQTT
- Modbus RTU (RS-485)
This enables real-time condition monitoring, remote diagnostics, and proactive maintenance strategies.
Listings & Certifications
Listings and certifications include:
- UL Listed*
- CSFM*
*Where applicable
Resources
Early Warning Before Escalation
Lithium-ion battery failures can escalate rapidly. By identifying abnormal environmental conditions and off-gas venting at early stages, REL-iON™ supports proactive intervention before suppression systems are required.
As part of KiddeFenwal Specialty Detection portfolio, REL-iON™ enhances system intelligence, helping facilities protect critical assets and maintain operational continuity.
