The owner of the old-fashioned electric meter in Xiao Yuan asked to replace the smart meter. How much do you charge according to the regulations?

50- 150 yuan. If it is an electric company, the replacement is free. If you change it yourself, buy one that has been approved by the electrical industry and has the certification mark, so as not to bother. Prices vary from region to region. One hundred yuan for workers in the northeast market. Beijing, Tianjin, Shanghai 150 yuan. 50 yuan, a rural area. The abbreviation of watt-hour meter is an instrument for measuring electric energy, also known as watt-hour meter, fire meter, watt-hour meter and watt-hour meter, which refers to instruments for measuring various electric quantities.