A new and distinct cultivar of Argyranthemum plant named \u2018Supacrest\u2019, characterized by its compact, upright and mounded plant habit; freely branching habit, dense and bushy plants; freely flowering habit with numerous inflorescences per plant; anemone-type inflorescence form with purple-colored ray florets and yellow-colored disc florets. In face-to-face relation with this to-be-detected portion 1, a magnetic detecting portion 2 is secured to a stationary race member 33. Upon receiving the beacon, a terminal A checks whether the operation mode of the terminal A coincides with the operation mode contained in the beacon. An actuator engages a lost motion device to lift the carriage member away from the ground surface.