As Rapahel mentioned de MS Ds shows that, but you can see that from MR28 and above the following information: Operating temperature: 32 °F to 104 °F (0 °C to 40 °C) Humidity: 5 to 95% non-condensing Operating altitude: Up to 40,000 feet (12,192 meters) I can't find it for MS and also MX.
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