Unitron Stride B9-UP Guide D'utilisation page 36

Date of manufacture
Serial number
Transportation and storage temperature limitation
Transportation and storage humidity limitation
Transportation and storage atmospheric pressure
limitation
Keep dry
This symbol confers that the electromagnetic
interference from the device is under limits approved
by the US Federal Communications Commission.
60
Symbols applicable to the European power supply only
Power supply with double isolation
Device designed for indoor use only.
Safety isolating transformer, short circuit
proof
61