Weather proof monitor (CE42LM6WP, CE52LH2WP) Weather resistant and water proof in accordance with the IP66 standard. - ANTI REFLECTION TAMPER GLASS This monitor set has a tough anti refection tampered glass. This offers the protection for the panel surface in the public display circumstance. - ALUMINUM CABINET & NON HOLES DESIGN This monitor set uses Anodized aluminum and it has quite unique “Non-Holes” ventilation design which protect against mischief in the public display applications and less maintenance from dust and oil circumstance, and having perfect protection of IP66 weather-resistant approval.