The usage method of electronic scale is as follows:

1. Place the electronic scale on a stable horizontal surface, avoiding shaking and vibration.

2. Press the switch button on the electronic scale and wait for a few seconds until the number "0.0" or "0.00" appears on the display screen.

3. Place the item to be weighed on the weighing tray of the electronic scale, ensuring that the item is placed steadily without shaking or colliding with the electronic scale.

4. Wait for a few seconds until the number on the electronic scale display stabilizes, then the weight of the item can be read.

5. After weighing is completed, remove the item to be weighed from the electronic scale and press the shutdown button on the electronic scale to turn off the scale.

It should be noted that when using an electronic scale, it should be avoided from being exposed to sunlight or humid environments to avoid affecting the accuracy and stability of the scale. At the same time, electronic scales should be calibrated regularly to ensure their accuracy and precision.