The design and construction of the power meter can ensure that no any risks occur during operation under rated conditions; there is a magnetic holding relay on the internal circuit board for direct power on-off control; with bidirectional metering function, the power in the forward and reverse directions can be accurately measured, and is metered in one direction; Purchase electricity first before electricity consumption. If the pre-purchased electricity is lower than the set value, an alarm will be issued, and the power will be cut off when the purchased electricity is consumed; the LCD or digital tube is used to display the used power and the remaining power. The meter displayed by the digital tube adopts IC card to purchase electricity; the LCD display meter can use many ways such as IC card and 485 communication to purchase electricity; the purchased electricity data is encrypted using strict encryption. There are optional alarm and credit function, alarm function, and power credit functions.
