The Central Display Unit (CDU) has alarm settings, real-time CO2 and O2 readings, and data on historic gas patterns. It allows swift responses to potential gas hazards from just one central screen.
The CDU also helps to ensure compliance with industry regulations (OSHA/NIOSH/NBIC) by showing data from connected gas detection alarms across multiple locations on a single dashboard.
The CDU is widely used in applications where many gas hazards must be monitored simultaneously, such as breweries, restaurants, laboratories, and industrial facilities.
When combined with the Remote CO2 Storage Safety 3 Alarm or the Oxygen Deficiency Safety Alarm, the CDU acts as a command hub, combining real-time gas data and sending critical alerts to safety professionals.
To get started, users should ensure they have the correct RAD-0102-6 or RAD-0002-ZR to integrate or contact a sales specialist who can assist users with a custom system for the application.
- Please note: Lead Time 1–2 Weeks
Features
- Relays control ventilation fans or signal the fire alarm panel.
- The LCD display vividly shows current gas concentrations.
- Meets NFPA, IFC, and NBIC requirements | OSHA and NIOSH TWA standards.
- Meets all local inspection norms and regulations.
- Connects up to twelve gas sensors for visual display.
- Three Relays.
- Audible/Visual Indicators.
- IP54 Enclosure.
Works With:
- Power Monitor Unit (RAD-PMU).
- Remote CO2 Storage Safety 3 Alarm (RAD-0102-6-HS2).
- Oxygen Deficiency Safety Alarm (RAD-0002-ZR-HS2).
- Single Sensor O2 Deficiency Monitoring System (RAD-SEU-ZR-HS1)
- Single Sensor CO2 Monitoring System (RAD-SEU-HS1)

Image Credit: CO2Meter, Inc.
Specifications
- Operating Temperature 32-122 ° F (0–50 °C).
- Connections Standard RJ45.
- Sensor Coverage Approximately 1,500 sq. ft.
- CO2 Sensor Measurement 0–5 % (0–50,000 ppm).
- O2 Sensor Range 0-25 %.
- Alarms (CO2) 5,000 ppm TWA, 5,000 ppm, 3 % (user configurable).
- Alarms (O2) 19.5 %, 16.5 %, 12 %.
- Measurement Interval 2 seconds (0.5 Hz).
Electrical and Mechanical Specifications
- Audible Alarm Level 88 dB.
- Relay Power Rating: Peak current <2 A @ 30 VDC or 250 VAC, SPDT.
- Relay Connection Screw Terminal Connection.
- Power Supply 100-240 VAC 50/60 Hz to 12 VDC power adapter.
- Voltage Range 9–32 VDC.
- Power Consumption: 3 Watts.
One Year Warranty