Oxygen Deficiency Monitor for O2 Depletion Safety


The Oxygen (O2) Deficiency Monitor is a 0-25% room oxygen monitor designed to protect staff from oxygen depletion. Created for facilities using inert gases, PureAire’s Oxygen Deficiency Monitors detect gases like nitrogen, CO2, helium, and argon to safeguard against oxygen depletion. Perfect for confined spaces, cryogenic facilities, and freezers, our oxygen sensor remains accurate even at temperatures as low as -40C. With PureAire’s durable zirconium oxide sensor, you can rely on its non-depleting and long-life capabilities without needing replacement. Don’t compromise on safety. Protect your facility and personnel from oxygen deficiency risks.

General Specifications

Sampling MethodDiffusion
Gases DetectedOxygen (O2)
Range0 – 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 Life> 10 years under Normal Conditions
Signal Outputs4-20 mA Analog Output (Active) Dual-Level Alarm Relay Contacts Please contact PureAire for the available RS-485 option
Power Requirements24 VDC 250 mA
Width5.12 in 130.1 mm
Height4.5 in 114.3 mm
Depth3.25 in 82.1 mm
Weight1.6 lb 0.8 kg
CalibrationCalibration IS required.
Country of OriginUSA
Harmonized Tarrif Code8531.10.0045

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