According to the market in 2019, the price of home weighing scales is generally around 40 yuan.

The oldest evidence of the existence of weight scales dates from 2400 to 1800 BC in the Indus Valley (in present-day Pakistan). Prior to this, there was no standard and accuracy that can measure body weight.

In Egypt, weight scales date back to approximately 1878 BC, but their use may have extended much earlier. The weight scale in the true modern sense was improved and invented by Da Vinci. With the development of the electronic scale industry, slowly many brands entered the Chinese market, electronic scales are used by more people, and more and more electronic scales The brand is familiar to humans.

Electronic scales usually need to be warmed up before use, and the warm-up time of each balance is often different. Generally speaking, the higher the accuracy level of the balance, the longer the warm-up time required.

Preheating can be carried out according to the requirements in the balance manual, if necessary, the preheating time can be extended (usually the lower the ambient temperature, the longer the preheating time).

In fact, many users use the balance out of the box, so the measurement performance of the balance cannot be guaranteed. Therefore, preheating of the electronic balance is the key to accuracy.

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