Air Systems Portable Airline Carbon Monoxide & Oxygen Replacement Monitor CO2-91

Air Systems Portable Airline Carbon Monoxide & Oxygen Replacement Monitor CO2-91

The Air Systems Portable Airline Carbon Monoxide & Oxygen Replacement Monitor CO2-91 is designed for industrial safety professionals who require reliable air quality monitoring in confined or hazardous environments. This portable monitor connects to breathing air filtration sources or ambient air pumps to detect dangerous levels of carbon monoxide (CO) and oxygen (O2), ensuring worker safety through audible and visual alarms.

Key features

• Detects carbon monoxide levels exceeding 10 ppm (5 ppm Canadian standard)
• Audible alarm at 95 dBA with optional high-intensity 120 dBA alarm available
• Includes ¼” industrial interchange coupling on a 5-foot hose for easy connection
• External alarm and light signals activate in closed and upright positions
• Standard alarm jack for connection to remote alarm devices
• Operates on 9-volt batteries, 8-16 VDC, or 115 VAC power sources
• Replacement monitor compatible with Bb50-Coo2 series

Ideal applications

• Industrial safety monitoring in confined spaces
• Air quality control for breathing air filtration systems
• Worksites requiring continuous carbon monoxide and oxygen level detection
• Use in environments with ambient air pumps
• Maintenance and safety checks in manufacturing and processing plants

Why buyers choose this product

This portable airline monitor offers dependable detection of hazardous CO and oxygen levels with clear audible and visual alarms, enhancing worker safety. Its versatile power options and compatibility with existing Bb50-Coo2 series systems make it a practical choice for industrial safety professionals seeking reliable air monitoring solutions.

Specifications

Brand	Air Systems
Product type	Portable airline carbon monoxide & oxygen replacement monitor
Model	CO2-91
Alarm sound level	Standard 95 dBA, optional 120 dBA
Coupling size	¼” industrial interchange
Hose length	5 feet
Power options	9-volt batteries, 8-16 VDC, 115 VAC
Compatibility	Replacement for Bb50-Coo2 series
CO alarm threshold	10 ppm (5 ppm Canadian standard)

Additional product details

The monitor is designed for use in both closed and upright positions to ensure accurate detection and immediate alerting of hazardous air conditions. Its standard alarm jack enables integration with remote alarm systems, enhancing safety communication on the jobsite.

This replacement monitor is essential for maintaining safe breathing air quality in industrial environments requiring continuous carbon monoxide and oxygen monitoring.

MFG Part #: CO2-91

Product Type	Allegro

Shipping

We Ship Internationally - We can ship to virtually any address in the world, with some restrictions on certain products.

Standard Delivery: Ground shipping typically delivers in approximately 5 business days from our Columbus, OH warehouse.

Expedited Options Available:

• Priority and Expedited handling speeds up processing
• Overnight shipping available (guaranteed) - must order by phone before 12pm EST M-F
• Some items ship "Manufacturer Direct" and cannot be expedited

Important: Inspect your delivery before signing! Note any damage on the shipping document.

Returns Policy

30-Day Return Window: Most new, unopened items can be returned within 30 days for a full refund.

Non-Returnable Items:

• Made-to-order fall protection products
• Used vacuums, respirators, gas monitors, or air scrubbers
• Calibration gas (hazardous material)
• PAPR and specialty respiratory items (non-stock)

Restocking Fee: 30% restocking fee or shipping costs apply if return is due to buyer error.

Refund Timeline: Expect refunds within 4 weeks, though many are processed faster.

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