SEFRAM MW3105 Manual page 8

2.2 Environmental conditions
Indoor use only
Maximum altitude of use: 2000 meters.
Operating temperature : 0 °C to 50 °C, <70% relative humidity.
Storage temperature : -20 °C to +60 °C, <80% relative humidity with battery removed.
Installation category : IEC1010 Cat III 600V.
Pollution degree : 2
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