Find Installed SharePoint Product Edition using PowerShell

Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue

#Hashtable to define Installed product from its GUID
#Based on: https://msdn.microsoft.com/en-us/library/office/jj659075.aspx and
#https://msdn.microsoft.com/en-us/library/ff721969.aspx

    $SharePointProducts = @{
                "BEED1F75-C398-4447-AEF1-E66E1F0DF91E" = "SharePoint Foundation 2010"
                "1328E89E-7EC8-4F7E-809E-7E945796E511" = "Search Server Express 2010"
                "B2C0B444-3914-4ACB-A0B8-7CF50A8F7AA0" = "SharePoint Server 2010 Standard Trial"
                "3FDFBCC8-B3E4-4482-91FA-122C6432805C" = "SharePoint Server 2010 Standard"
                "88BED06D-8C6B-4E62-AB01-546D6005FE97" = "SharePoint Server 2010 Enterprise Trial"
                "D5595F62-449B-4061-B0B2-0CBAD410BB51" = "SharePoint Server 2010 Enterprise"
                "BC4C1C97-9013-4033-A0DD-9DC9E6D6C887" = "Search Server 2010 Trial"
                "08460AA2-A176-442C-BDCA-26928704D80B" = "Search Server 2010" 
                "84902853-59F6-4B20-BC7C-DE4F419FEFAD" = "Project Server 2010 Trial"
                "ED21638F-97FF-4A65-AD9B-6889B93065E2" = "Project Server 2010"
                "926E4E17-087B-47D1-8BD7-91A394BC6196" = "Office Web Companions 2010"
                "35466B1A-B17B-4DFB-A703-F74E2A1F5F5E" = "Project Server 2013"
                "BC7BAF08-4D97-462C-8411-341052402E71" = "Project Server 2013 Preview"
                "C5D855EE-F32B-4A1C-97A8-F0A28CE02F9C" = "SharePoint Server 2013"
                "CBF97833-C73A-4BAF-9ED3-D47B3CFF51BE" = "SharePoint Server 2013 Preview"
                "B7D84C2B-0754-49E4-B7BE-7EE321DCE0A9" = "SharePoint Server 2013 Enterprise"
                "298A586A-E3C1-42F0-AFE0-4BCFDC2E7CD0" = "SharePoint Server 2013 Enterprise Preview"
                "D6B57A0D-AE69-4A3E-B031-1F993EE52EDC" = "Microsoft Office Web Apps Server 2013"
                "9FF54EBC-8C12-47D7-854F-3865D4BE8118" = "SharePoint Foundation 2013"
                  }    

#Get currently installed product's GUID
$InstalledProducts =  (Get-SPFarm).Products

#Determine the product edition based on GUID from the HASH Table
$InstalledProducts | ForEach-Object { write-host $SharePointProducts.Get_Item($_.GUID) }