PowerShell, WMI and SQL Server

I was recently asked "how can we determine the specific SKU of an installed SQL Server - without being able to execute T-SQL?". My answer:

The following one-liner lists various advanced properties of a SQL installation:

Get-WmiObject sqlserviceadvancedproperty -namespace "root\Microsoft\SqlServer\ComputerManagement" -computername | Select-Object -Property PropertyName, PropertyNumValue, PropertyStrValue