How to choose an alarm clock?

In today's fast-paced life, little alarm clock has become an essential role in life, and consumers also have some tips when purchasing alarm clocks.

1. Check the appearance first: the color of the Bell shell is bright and uniform, without paint removing, discoloration and scratches. Clock dial should be clean, with uniform scale and clear handwriting.

2. Check the sensitivity: according to the product battery containers icon, put the battery correctly according to the polarity, and start walking in seconds, which proves that the sensitivity is high. The clock with high sensitivity lasts for a long time.

3. Check the sound of walking Time: place the left and right sides of about clock dial up and down. If the sound of walking in all directions is the same, even without noise, it means that the walking time is normal.

4. Check whether it is rammer: When you toggle, minute hand, make the time, minute hand and second hand overlap (three needles overlap), and keep a certain gap between the three needles, and do not touch. At the same time, the needle should have an appropriate gap with clock dial and glass.

5. Check the noise difference: Set the alarm clock to 3, 6, 9, 12, etc., and then move the time needle to these places. If the noise error is within 5 minutes, it is normal to make a difference.

6. Check the alarm sound: the alarm sound should be clear, loud, no dumb sound, no empty sound.

7. Check the tightness of the needle spoon: the tightness should be moderate. If the needle spoon is loose, it indicates that the torque of the sub-wheel is too small, which will lead to the slow phenomenon of Walking with the second hand while the sub-needle is not walking or walking. But if the needle spoon is too tight, it is not convenient to use.

First Quality Standard:

1. The average monthly difference is about 30 seconds

2. The alarm clock is about 5 minutes short.

2. Instructions for use:

1. Install the battery, put the noise switch in the stop state, and then put the battery into the battery box correctly according to the positive and negative direction.

2. Time setting: turn the knob behind the clock to the required time according to the direction of the sign.

3. Alarm setting: turn the knob behind the alarm clock in the direction of the sign until the time of the alarm is set, and turn on the alarm switch.

Three maintenance methods:

1. Do not install batteries when the clock is not in use

2. This clock movement, precise structure, avoid violent impact vibration

3. Do not place the clock in wet, high temperature, dusty and corrosive gas