"LO" is the abbreviation of "low voltage", that is, the battery charge or voltage is low.

The body fat scale shows lo for three reasons:

1. The battery of the electronic scale is too low and needs to be replaced. The method of replacing the battery is simple. Just open the battery cover at the bottom of the electronic scale, then take out the old battery and put on a new battery, and finally cover it.

2. Poor power contact. The problem usually lies in the battery sensing electrode. You can wipe it clean with cotton dipped in alcohol and try again.

3. The battery is not suitable. Electronic scales generally use No.7 batteries, and alkaline batteries should be avoided.

principle

It is found that when an electrical signal with a certain frequency passes through the human body, the "impedance value" of the fat part is higher than that of muscles and other tissues of the human body. When an electrical signal with a safe specific frequency passes through the human body, the electrical signal will change in different degrees due to the different "impedance values" of the human body.

Principle: Muscle contains more water such as blood, which can conduct electricity, but fat can't. Because the channel conductor of current in the body is muscle, the weight of muscle can be known from the difficulty of current passing, so it can be judged that people with less muscle have a higher proportion of fat.