O2 Monitor with 10+ Year Remote Sensor


PureAire’s Oxygen Deficiency Monitor with Remote Sensor is perfect for facilities that use inert gases, including, but not limited to, nitrogen, helium, and argon. The remote sensor allows for continuous monitoring up to 30 feet from the monitor. This monitor is well suited for confined spaces or spaces that are not easily accessible. The monitor will remain accurate at temperatures as low as -40C. PureAire’s durable, non-depleting, zirconium oxide sensor will last up to 10+ years in a normal environment without needing to be replaced.


• Long life, 10+ year average sensor life
• Two, user-adjustable, alarm relay setpoints available or alarm defaults are set to 19.5% and 18.0%
• No Scheduled Maintenance Required
• Built-in audible alarm 90 dB
• Remote sensor capability up to 30 feet
• 3 Year Warranty
• Digital Display
• 4-20mA Analog Output (Active)
• Operates in Freezers at – 40 ºC
• No Drift due to Thunderstorms or barometric pressure changes
• Wall mounting brackets
• UL, C, UL, and Ce approvals
• 24V DC Power supply included

General Specifications

Sampling Method & RangeDiffusion, 0-25% O2
Accuracy± 1 % of Full Scale
Operating Temperature-40 to +55 ºC
Display3/4″ LCD Digital Display, Back Lit
Sensor TypeLong-life zirconium oxide sensor cell
Sensor Life10+ years under Normal Conditions
Signal Outputs4-20 mA analog output (Active) Dual User Selectable Relays (2amp 30VDC / 240VAC), Audible horn Please contact PureAire for the available RS-485 option
Power Requirements24 VDC 250 mA
Dimensions6.5 (W) x 4.5 (H) x 3.25 (D) inches; (165.1 x 114.3 x 82.5 mm)
Width1.6 lbs (.8 kg)
ApprovalsCe approval & factory calibrated against a NIST traceable reference standard
CalibrationCalibration IS required.
Country of OriginUSA
Harmonized Tarrif Code8531.10.0045

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