The charging station is compatible with the Dyson V15, which also includes the V15s Detect Submarine. The "Floor Dok Multi" accessory (972214-03) is designed for models such as the Dyson V15, V11 and Outsize and serves as a free-standing charging station with accessory holder. However, there are reports in the Dyson Community that the compatibility with the V15s Detect Submarine does not always work properly, although Dyson officially states this.

To summarise: The charging station is basically suitable for the V15s Submarine, but problems may occur in individual cases.

I have the Dyson V15s Detect Submarine™ and the Dyson Floor Dok™. They don't go together.