Retex 50 series aluminium enclosures retex 31150004 handheld grey aluminium enclosure from the retex 50 series measuring 102 x 37 x 190mm suitable for a range of applications both indoors and out the lid is made from high quality abs and is recessed to allow a membrane display or keypad to be fitted a number of battery compartments designed to fit within this enclosure are also available retex 31150004 aluminium enclosure grey 102 x 37 x 190mm 50 series