HS-MS100+ Not a root device when powered

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According to the manual https://homeseer.com/wp-content/uplo...S-MS100v1b.pdf

Important: Line-powered devices function as Z-Wave repeaters. If you’ll be powering HS-MS100+ with batteries, include it into your network ON BATTERY POWER to prevent it from repeating Z-Wave commands. This functionality would quickly deplete your Motion Sensor’s batterie

This sensors should act as a repeater. So why I am having this notification into the z wave device utility page ? There are no batteries into the device.
''Note: The device must be woken up manually to use the functions below.''