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A close relationship between humidity and string instrument. * String instrument should be kept in humidity 50~70% and temperature 15~25C as same as the existential condition of human being. And such humidity and temperature is actually the best optimum for human life and string instrument. * Problems inscurred by too much humidity absorbed into string instrument: .Crack of sound board. .Surface paint will easily get deformed and the key of string sound is likely to be imprecise. **AWARDED PATENT NO.170673 FROM THE BUREAU OF STANDARDS R.O.C. .String can be rusted or broken easily, and the microscrew can not be fixed. Features of this 21st century * This product has both dehumidifying and humidifying functions. Based on a test method, horse hair humidity test, invented by Taiwan`s Central Weather Bureau, the dehumidifying devise will automatically start to fan out humidity and control it at the standard level once the humidity exceeding the limit standard 50-70%. * Green light will flash under dehumidifying and red light will flash if dehumidifying is stopped. Yellow light will automatically start to flash, if there is any machinery malfuction. * This product can be operated all year long, no need to have a break once you get it plugged. As it only consumes very little electricity, DC 15V 250MA, this product is energy saving, safe, economical and effective.
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