Ideal for storage areas, confined Spaces, and other locations that require remote oxygen monitoring. The built-in pump samples oxygen levels from as far as 100 feet away and is suitable for facilities using inert gases, including but not limited to nitrogen, helium and argon. The monitor is ideal for MRI facilities, cryogenic spas, hospitals, freezers and laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-expendable zirconia sensors last more than 10 years in normal conditions without replacement.