| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-vehicle device with improved convenience.SOLUTION: A digital tachograph 10 includes a handy ten key-109 that receives cancellation input among various inputs. When the handy ten-key 109 receives a cancellation input, and a vehicle is determined to be in an idling condition, the digital tachograph 10 shifts to a rest mode for not outputting an idling alarm tone. |
