The moisture meter can quickly measure the moisture content of the grain. 1. The mechanism is made of plastic steel, anti-vibration and anti-fall, has a durable quality. 2. There is a protective cover that protects the pendulum needle and prevents dust from entering the movement. 3. Use the pendulum to choose the desired pace, let the pendulum set in motion, easy to use. 4. Nickel-plated swinging rudder, fast speed and down adjustment, set the exact musical time, help to play at the right pace. 5. Have a classic pyramid-style design, with a pendulum in the middle that complements this classic look that all musicians love. 6. Suitable for practicing piano, violin, guitar, bass, drum kit and other musical instruments, it has an adjustment range from 40 to 208. 7. Accurate rhythm, clear scale, adjustable rhythm mode, provide space for choosing an accent according to your practice. Specification: Item Type: Mechanical Metronome Shell Material: ABS Movement Material: Plastic Steel List of packages: 1 x Mechanical metronome 1 x User Manual Note: According to the rhythm speed requirements of each song, move the pendulum to the appropriate speed scale and pull the accent adjustment key to adjust the accent. For example: 1. Impact speed at 138: Move the metronome pendulum to a position on the scale of 160 (the pendulum moves slower upward, faster downwards)2. Accent: note 4/4: when the accent key is moved to position 4/4, it will "ding" every 4 strokes to remind you of the accent. 1. Remove the lower brake of the metronome2. Open the transparent cover3. Tight clockwork on the right side of the metronome4. Select the rhythm type on the left side of the metronome5. Move the rudder up and down to adjust the speed value (min/takt)6. Pull the pointer out of the card slot with your thumb and use it