The TC-O is a freight lift that is safe for people to carry in accordance with European safety standards. If fitted with a cabin and an automatic cabin door, users will not distinguish it from a passenger and cargo elevator. It is designed to comply with the Machinery Directive, which gives more freedom to the TREZ design engineers, so TC-O becomes quieter, with less power, and can be erected directly on the ground floor. The only disadvantage of the TC-O is its slower speed.