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See the related link below. It is build by using 8051 microcontroller, you can also get the source code from there.
A PHCN meter measures electric power for prepaid meters in Nigeria.
No; at present not available.
A wattmeter measures power, which is the rate of doing work, expressed in watts.An energy meter measures the amount of energy consumed, usually in kilowatt hours.The meter on the wall of your house is an energy meter.
You are limited to energy usage.Energy can sometime be 'out of stock'.
eletrical energy into mechanical energy
Probably a regular energy meter that is meant for you to use in your house.
You need to call their customer service or technical support hotline. They will send you a prepaid shipping label to send the machine back to their meter returns department.
light energy measures energy by
the value 'n' of meter constant indicates that consumption of energy is n KWh.
Newton meter is a measure of energy, E= fd, Energy equals .Newton (force) times meter(distance)