| 摘要 |
PURPOSE:To execute smoothly the corresponding of early morning at the time of snow falling by ringing the alarm at the time set earlier than the usual time when the snow is falling. CONSTITUTION:A user sets optionally an alarm setting needle 3 at the usual time and an alarm setting needle 2 at the time of snow falling respectively, turns ON an alarm function switch 1. When the snow does not fall, an alarm mode changeover switch 6 is changed over to a setting needle 3 side, and therefore, the bell rings at the usual setting time. At the time of snow falling, by means of a snow falling sensor 5 set out of doors, the switch 6 is changed over to the setting needle 2 side, and at the time set earlier than the usual time, the bell rings. Consequently, the correspondence can be executed by the time allowance such as the avoiding of the traffic congestion and the tire chain fitting due to the snow falling early morning. |
