ARISTA Class 1 Division 2 explosion-proof Panel PC series offers a variety of touch screen and LCD display size options. ARP-3821AX with Projected Capacitive touch screen and ARP-5500AX Series with 5-wire Resistive touch screen both have UL Class 1 Division 2 explosion-proof certification. Explosion-proof panel computers can prevent the explosion caused by flammable or chemical substances floating in the air, which is especially desirable in the API (Active Pharmaceutical Ingredient) stage of the pharmaceutical manufacturing process. The APR-5500AX series provides LCD display sizes in 15, 17, and 19 inches and 5-wire Resistive touch screen. ARP-3821AX provides 21.5” LCD display and Projected Capacitive touch screen.