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Due to the national holidays as Golden Week, we will close 2018/4/28~2018/4/30 and 2018/5/3~2018/5/6.
This may cause delays with our responses. Thank you for your understanding.
Although it is not so frequently, it is effective for the measurement when a narrow place or a hidden place can not be directly visually recognized. However, since there is no resume function, data will be lost if you turn off the power. Even so, once you know that convenience, many users will be unable to give it away.