Without seeing that in context or at least a minimal example, it's hard to say more (e.g., do you ever format() it?), but offhand, the only thing I'm not sure is what that stateDataLength parameter is doing, since I'm not finding any evidence for that anywhere. It's also possible this device does not support V3 of this command class, though don't know its specifics off the top of my head.
It looks like Bryan's old driver does use the class instead of raw hex. Not sure what anyone specifically has tried, but here's a specific link to that one, which is often helpful in such discussions: [RELEASE] HomeSeer HSM200 Multi-Sensor
If that doesn't work for something, I'd be curious for the same answers as above.
