Most of the Auto-ID systems for industry are made by metal housing and it should be heavy duty. We like to recommend you to study Birch Auto-ID systems as below:
----Aluminum housing EstiloMini( IT-6300): Aluminum housing,Fanless, Celeron-M, COM x 6 , USB x 4.
----Metal housing: IT-6066-10: Metal housing, Fanless, Celeron-M 1.0G, COM x 4, USB x 4, with metal bracket for wall-mounting
IT-6066-15: Metal housing, with Fan, Celeron-M 1.5G, COM x 4, USB x 4, with metal bracket for wall-mounting
