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# I have 2 questions (in details) First: a way to measure Watts? Second: Rotating Camera Mount?

so as I said I have 2 questions.

First: Is there a device that can measure the watts of an appliance?

I just got a hold of a cheap generator (900w normal 1000w peak) and need to find out the wattage of some appliances. (None have stickers/plates on them at all to help me calculate it.)

Second: Can anyone direct me to an instructable on motorized rotating camera mounts or anywhere that can show me how to build one?

I want to be able to watch the sky from inside we get some nice weather here but hard to watch it from inside hehe.

## Comments

9 years ago

Regarding question 1:

You can buy watt-meters, and (depending where you are), you can get meters that you simply plug the appliance into and get told how much energy is being used. (See this googled example)

Otherwise, power = current x voltage. A cheap multimeter will measure those for you.

Regarding question 2, I think you need to start with this project.

Answer 9 years ago

+1

I use a kill-a-watt meter and its great -- even tells you the power factor of high inductive loads like smps computers and motors.

9 years ago

You can buy watt meters but normally you can calculate easily by knowing the voltage and current used by the appliance.

One watt is the rate at which work is done when an object's velocity is held constant at one meter per second against constant opposing force of one newton.

In terms of electromagnetism, one watt is the rate at which work is done when one ampere (A) of current flows through an electrical potential difference of one volt (V).

W = V * A