Oxygen Deficiency and Enrichment Safety Alarm with Horn Strobes

The CryoFX Oxygen Deficiency and Enrichment Safety Alarm with Horn Strobes (CFX-RAD-0002-ZR-HS2) is a professional-grade oxygen monitoring system engineered to continuously detect both oxygen depletion and oxygen enrichment conditions in commercial and industrial environments. Formerly known as the CFX-RAD-0002-ZR, this fixed gas safety monitor measures ambient oxygen concentrations from 0% to 23% O₂, providing immediate audible and visual notification whenever oxygen levels move outside safe operating limits.

Unlike carbon dioxide, oxygen hazards can result from both oxygen-deficient atmospheres and oxygen-enriched environments, each presenting significant risks to personnel. Oxygen deficiency can rapidly lead to dizziness, unconsciousness, and asphyxiation, while oxygen enrichment dramatically increases fire and combustion hazards. The CFX-RAD-0002-ZR-HS2 continuously monitors ambient oxygen levels around the clock, providing early warning so corrective action can be taken before dangerous conditions develop.

Designed for demanding commercial applications, this oxygen safety alarm is commonly installed in laboratories, cryogenic storage facilities, pharmaceutical manufacturing, medical gas storage, research facilities, manufacturing plants, industrial gas rooms, process cooling systems, freezers, clean rooms, and facilities utilizing nitrogen, argon, helium, or other inert gases capable of displacing oxygen.

The system combines a highly reliable zirconium oxide oxygen sensor, capable of providing 10+ years of service life, with both a local alarm and a dedicated remote display and horn strobe, allowing personnel to monitor oxygen concentrations from a convenient location while maintaining highly visible alarm notification throughout the protected area. The remote display may be installed up to 300 feet from the primary monitoring unit, providing exceptional installation flexibility for a wide variety of facility layouts.

Three user-configurable alarm levels allow the system to be tailored to individual facility requirements while supporting applicable workplace safety standards. Integrated 4–20 mA output and programmable relays allow the monitor to interface with ventilation systems, building automation controls, emergency notification equipment, or additional monitoring devices.

The CryoFX Oxygen Deficiency and Enrichment Safety Alarm is also fully expandable through compatible accessories including centralized display units, power monitoring devices, additional remote displays, solenoid shut-off valves, and auxiliary horn strobe kits, allowing facilities to build a comprehensive oxygen safety monitoring solution.

Installation is simple using the included mounting hardware, disconnectable communication cable, and plug-in power supply. For long-term equipment protection and reliability, CryoFX recommends installing every monitor with a quality surge protector.

Features

• Continuous 24/7 oxygen deficiency and oxygen enrichment monitoring
• Professional fixed oxygen safety monitoring system
• Highly accurate zirconium oxide oxygen sensor
• Sensor life expectancy exceeding 10 years
• 90 dB audible alarm and high-visibility horn strobes
• Alarm notification at both the sensor and remote display
• Three user-configurable oxygen alarm thresholds
• Remote display installation up to 300 feet
• Real-time oxygen concentration monitoring
• Integrated 4–20 mA output
• Three programmable SPDT relays
• Supports building automation and ventilation integration
• Modular expandable platform
• Simple installation with disconnectable communication cables
• Designed for commercial and industrial oxygen monitoring applications

Note: A surge protector is required to maximize equipment protection and long-term monitor reliability.

Applications

Ideal for monitoring oxygen levels in:

• Laboratories
• Pharmaceutical facilities
• Cryogenic storage rooms
• Liquid nitrogen storage
• Medical gas storage
• Process cooling systems
• Industrial freezers
• Manufacturing facilities
• Research laboratories
• Clean rooms
• Gas cylinder storage rooms
• Industrial processing facilities
• Facilities utilizing nitrogen, argon, helium, or inert gases
• Commercial oxygen monitoring applications

Compatible Accessories

Expand your oxygen monitoring system with:

• CFX-RAD-CDU-HS1 Central Display Unit for Gas Safety Alarms
• CFX-RAD-0022-ZR Additional Remote Display
• CFX-RAD-PMU Power Monitor Unit
• CFX-SV-1029 Solenoid Shut-Off Safety Valve
• CFX-CM-HS2 Dual Horn Strobe Add-On Kit
• Certificate of Calibration (Available upon request during purchase)

Specifications

Oxygen Monitoring

• Measurement Range: 0–23% O₂
• Display Resolution: 0.1%
• Accuracy: Better than ±2% Full Scale
• Pressure Dependence: Not pressure dependent
• Response Time: Less than 2 minutes (90%)
• Alarm Response Time: Less than 60 seconds
• Warm-Up Time: 10 minutes (600 seconds)
• Operating Temperature: -58°F to 122°F (-50°C to 50°C)

Default Oxygen Deficiency Alarm Levels

• AL1: 19.5%
• AL2: 16.5%
• AL3: 12%

Default Oxygen Enrichment Alarm Levels

• AL1: 22%
• AL2: 24%
• AL3: 25%
• Sensor Life Expectancy: 10+ Years

Physical Specifications

• Weight: 1.5 lbs (Monitor only)

Dimensions

Sensor Unit (SEU)

• 6.5 × 5.0 × 2.5 in.

Remote Display Unit (RDU)

• 5.5 × 3.5 × 1.75 in.

Electrical Specifications

• Power Supply Output: 12VDC, 2000mA
• Power Input: 100–240 VAC, 50/60Hz, 0.6A
• Included Cable: 25 ft Ethernet communication cable
• Power Consumption: 3 Watts
• Battery Backup: 6VDC battery backup connections
• Relay Rating: Peak Current <2A @ 30VDC or 250VAC
• Relay Type: SPDT
• Analog Output: 4–20 mA

Safety Benefits

The CryoFX Oxygen Deficiency and Enrichment Safety Alarm continuously monitors workplace oxygen concentrations, helping protect personnel from potentially life-threatening atmospheric conditions caused by oxygen depletion or oxygen enrichment. Early detection allows facilities to respond quickly, activate ventilation systems, notify personnel, and reduce the risk of injury while supporting safe operation in environments utilizing cryogenic liquids or compressed industrial gases.

Installation Notes

The system includes mounting hardware, communication cable, remote display, and plug-in power supply for quick installation. Simply mount the sensor and remote display, connect the included Ethernet communication cable, plug the system into power, and begin continuous oxygen monitoring.

CryoFX strongly recommends installing the monitor with a surge protector to maximize equipment longevity and protect against electrical surges.

Warranty

• 1 Year Manufacturer Warranty