Power Meter (32064) Available now

Designed to measure energy use of household electrical appliances

Calculates running cost of household appliances

Displays voltage, current, power, power used and cost

Helps save energy by identifying appliances with high energy consumption so that their use can be more efficiently managed

The Arlec Energy Cost Meter is designed to measure the energy use of household electrical appliances, giving you a better idea of the true cost of ownership for your most used appliances.

https://www.bunnings.com.au/arlec-energy-cost-electrical-meter_p4410270

https://www.arlec.com.au/wp-content/files/PC222.pdf

Basic Electricity Notes:

Electricity is the movement of electrons. Electrons create charge, which we can harness to do work. Your lightbulb, your stereo, your phone, etc., are all harnessing the movement of the electrons in order to do work. They all operate using the same basic power source: the movement of electrons.

The three basic principles for this tutorial can be explained using electrons, or more specifically, the charge they create:

Voltage is the difference in charge between two points.

Current is the rate at which charge is flowing.

Resistance is a material's tendency to resist the flow of charge (current).

So, when we talk about these values, we're really describing the movement of charge, and thus, the behavior of electrons. A circuit is a closed loop that allows charge to move from one place to another. Components in the circuit allow us to control this charge and use it to do work.

In general physics terms, power is defined as the rate at which energy is transferred (or transformed).

So, first, what is energy and how is it transferred? It's hard to state simply, but energy is basically the ability of something to move something else. There are many forms of energy: mechanical, electrical, chemical, electromagnetic, thermal, and many others.

Energy can never be created or destroyed, only transferred to another form. A lot of what we're doing in electronics is converting different forms of energy to and from electric energy. Lighting LEDs turns electric energy into electromagnetic energy. Spinning motors turns electric energy into mechanical energy. Buzzing buzzers makes sound energy. Powering a circuit off a 9V alkaline battery turn chemical energy into electrical energy. All of these are forms of energy transfers. Electric power is measured by combining both how much electric energy is transferred, and how fast that transfer happens.