Features:• Made with Polycarbonate material and moulded in light grey.• Operating temperature : minus 40C to 125C • The lid and base incorporate a tongue and groove sealing system with a EPDM gasket • Lid fixing screws are M-4 stainless steel (non metallic) into threaded brass inserts• Wall mounting holes and lid fixing screws are outside the sealing area thus preventing the ingress of moisture & dust • Designed to IP65 of IEC 529and NEMA 4 (dust and hoseproof) • Internal guide slots for mounting PCB assemblies vertically • External mounting plate (4pcs) made of thermoplastic are available as an option • External hinge kit (2pcs) made of thermoplastic are available as an option.