A disclosed measurement head includes a sensor body attached to a camera by a resilient member. The surface of the ceramic heater is therefore protected by the cover made of a ceramic plate, and the surface of the ceramic heater is prevented from being directly exposed to the gas such as the cleaning gas. In this way, the user can input different types of information by performing different touch actions, simplifying the user’s operation, and improving operation efficiency. Thereafter, when downstream side stencil sheet awaiting sensor is made ON and second has elapsed, feed motor is made OFF and stopped and lower side movable guide plate is moved to lower limit position by driving downstream side movable guide motor. The invention further relates to hybrid soybean seeds, plants, and plant parts produced by crossing the cultivar 8607481 with another soybean cultivar. An organic EL device using the iridium compound is high in device characteristics, including emission efficiency, brightness, color purity, and lifetime characteristics is also provided.