The UL temperature-or T-rating-measures the heat generated by active devices. UL requires equipment operating at a temperature higher than 100°C (212°F) based on a 40°C (104°F) ambient temperature be marked with a maximum operating temperature warning. Since Panasonic Toughbook mobile computers are engineered to operate at cooler temperatures, they have no UL restrictions on use in warmer settings.
UL 1604 certification also requires a drop test to assure that parts will not loosen or fall out if the unit accidentally drops. Some parts, including batteries, could cause a spark if abruptly disconnected. Toughbook computers, with their rugged design, can withstand drops of up to 6 feet. Furthermore, by providing the option to wrap the entire unit in a custom leather case, Panasonic provides additional protection by ensuring the unit itself cannot cause sparks when dropped.
Panasonic's long-running commitment to safety has resulted in products, like Toughbook mobile computers, that exceed UL 1604 requirements, ensuring the safety of both users and the general public.