1. Improper use: When weighing human body, weighing scale or body fat scale may be used incorrectly, for example, the body is not completely standing on the scale. This may result in inaccurate readings.
2. Sensor failure: The sensor of weighing scale or body fat scale may fail, resulting in inaccurate reading.
3. Battery problem: If the battery is low or unstable, the reading of weighing scale or body fat scale may be inaccurate.
4. Operating environment: The operating environment may affect the accuracy of weighing scale or body fat scale, such as temperature, humidity, air pressure and other factors.
To solve this problem, you can try the following methods:
1. Confirm the use method: read the instructions of weighing scale or body fat scale carefully to ensure the correct use.
2. Check the sensor: If possible, try to clean the sensor or adjust its position to ensure that it can be read accurately.
3. Check the battery: If the battery is low or unstable, the reading may be inaccurate. Please replace the battery and try to weigh the human body again.
4. Confirm the use environment: ensure that the use environment meets the requirements, such as temperature, humidity, air pressure and other factors.
If the above methods can't solve the problem, I suggest you contact the product manufacturer or after-sales service department for further help and support.