Pro CO Alarm Analyzer - Handheld


The handheld Nuvair Pro CO Alarm analyzer detects carbon monoxide (CO) levels in stored gas cylinders, enclosed spaces and compressors. With a range of 0-50 ppm, the Pro CO is equipped with two user-programmable alarms that sound if levels exceed alarm setpoints. Four power options available.



Designed to detect the presence of carbon monoxide in stored gas cylinders, enclosed spaces and compressors, the handheld Nuvair Pro CO Alarm analyzer comes with two user-programmable alarms. If the analyzer reading drops below or rises above the alarm setpoints, a small relay sounds an alarm and can illuminate a small LED. This same relay can activate a larger relay to automatically shutdown compressors, sound an external alarm or activate emergency backup systems.

Price varies according to power options. The lithium battery powers the Pro CO Alarm for about 40 hours between charges.

PLEASE NOTE: Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal injury or death. Most gas analyzers can be used to analyze a regulated gas sample flow, the contents of a gas cylinder, or the flow from a regulator. The flow rate of gas must equal 1-5 L/min. To produce this flow, a Flow Restrictor and Regulator may be required.


Flow Rate 0.5-1 L/min
Resolution 1 ppm
Repeatability <+5%
Acccuracy ±5%
Sensor Type Electrochemical
Expected Sensor Life >24 months in normal use from date of manufacture
Range 0-50 ppm CO
Alarms Two user-programmable audible and visual alarms
Response Time <50 seconds over complete temperature range
Operating Temperature 14° to 122°F (-10° to 50°C) continuous
-4° to 122°F (-20° to 50°C) intermittent 
Operating Humidity Non-condensing: 15-90% continuous; 0-99% intermittent
Storage Temperature 14° to 140°F (-10° to 60°C)

• 9 Volt Battery (SKU 9625-B)
• Rechargeable Lithium Battery (SKU 9625-LB)
• Wall Plug-in [International] (SKU 9625-E)
• 12 Volt DIN Rail (SKU 9625-DP)

(L x W x H)
2.5 x 1.75 x 4.25 in
(6.4 x 4.5 x 10.8 cm)
Weight 7.8 oz (0.22 kg)
Warranty 12 months
Replacement Sensor SKU: 9501