Industrial Grade Intercom over IP InterLAN.4P InterLAN.8P manufactured in diecast aluminium. The front panel contains four or eight programmable buttons with associated led indicators and function labels. The unit which is particularly suited to industrial environments has IP66 rating. The speaker and microphone protective grills are in powder coated steel. Also available in a stainless steel and glass reinforced polyester version for use in areas containing a particularly aggressive atmosphere.