Excessive drying or moisture is a big enemy of musical instruments, have a substantial impact on performance. First of all, is that you know the temperature and humidity of the storage area is probably the first step of instrument maintenance. The Humidi-Beat, because you have a temperature and humidity meter, it is possible to check at any time. Temperature and humidity values were detected at 10 second intervals, but is a suitable humidity value is 40-60% for the instrument, when it comes to any other value, warning message become Lo / Hi also displayed kind designed to be . Also, because it is very compact, also can be placed in an instrument case, to be or attached to the outside of the case usability good. If there is Humidi-Beat, you will be able to know the condition on a daily basis instrument. On how to set the tempo, Pendulum steps to increase or decrease the tempo in the same step and number of mechanical metronome, full-step may be set to a range of up to 30-252 in 1 step increments, and, to match the music you want to play by pressing the switch, you can select from three types of tap-tempo that you can set the tempo of preference. Also, the tempo is to inform with a red light flashing and powerful sound that undeniably not even the sound of around, further, that and that only flashes of light, you can also change the size of the sound in the large / small.