^ i have a digital one made in germany which i brought from uae. And yes you are surprised when you see the actual wattage of the equipment.
@bilalahmad Bro you could check wattage from an clamp meter as well. Just make take a 7/29 wire of about 2 foot and cut in half. Take a pair of male & female electric plug shoe and connect them via these wires. Make sure you don't tape the wires and they are separable.
Ok now that you have done that, connect any appliance to the wall socket using these wires. Take the clamp meter and put the clamp around one of the wires (not both) and note the amperes. Regardless it shows -ve or +ve value. Check the present voltage using the clamp metre's prongs. Multiply amperes and voltage and power factor for wapda (which is 0.8) and you will get the Watt's your appliance is taking. Exclude the power factor and you will be left with VA,
Divide both values with 1000 and you will get the answer in kW and kVA.
Power = Volts x Amperes x Cos(@)
Here @ is angle couldn't find a suitable symbol for it in my mobile. And cos(@) is power factor.
And for my friend (@omRON) who was talking about kWh meter, you get it free with the package above :-P. Let me explain what a wapda unit is and how to know what units an appliance is consuming.
A Wapda charging unit is kW-h, pronounced as kilo watt hour. If a 1000 watt (1 kW) appliance is ran for 1 hour, a unit will be charged to you. If you run it for 30 min, you will be charged half a unit, so on and so forth.
So if a 50W appliance is ran for 20 hours, only then it will be able to score a unit which is 1kW-h. Rest use your IQ and calculate your estimated expense.
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