Watts Clever Plug-in Power Meter
With the Watts Clever Power Meter you can measure power consumption and usage cost of any plug-in appliance.
The Power Meter will help you uncover your energy hungry appliances and start reducing your power bills!
You could save $100's by using this Power Meter
Here are some energy guzzlers and associated savings identified with this power consumption meter:
- One desktop computer set-up was found to use 22 watts in standby (costing $40 per year when it was not even being used).
- Reducing a particular pool pump's run-time by just two hours per day saved $237 per year.
- A sound system's sub-woofer was using 10 watts in standby (costing $20 per year unused).
- A dishwasher's lower temperature setting used 0.4 kWh less per load saving the household $36 per year.
See the Power Meter in action:
"I was pleasantly surprised with how easy the Steplight Power Meter was to use. It appears to be reasonably accurate, unlike some other power meters. I've identified the real power hogs in my house, and have taken steps to make sure that they're always off when not in use."
- Ben (Beldon, Western Australia)
Measure power consumption & stop energy wastage
This power meter measures the power consumption of any appliance plugged into a standard power outlet.
It can also measure a group of appliances plugged into a single power board. Use it to uncover how much each of your appliances cost to run.
- Measures from 1 to 2,400 watts.
- Also reports usage in kilo-watt hours (kWh) - what you are billed for.
- Tracks actual cost by entering your electricity tariff.
- Measures voltage, current, Power Factor and frequency (50 or 60Hz).
- Displays watts (W) and voltage (V) to one decimal place. It shows kilowatt-hours (kWh) and current in amps (A) to three decimal places.
"It's working brilliantly. I now know that my TV uses far more power in standby than I expected!"
- Nic (Masterton, New Zealand)
It also has these additional features:
- In-built timer to track appliance run-time.
- Internal battery ensures data is not lost when unplugged.
- Accuracy of measurements are +/- 1%.
- Power consumption of the meter is less than 0.5 watts
- It can be used with an extension cord
"Easy to read, simple to set. Good product. Thanks!"
- Richard (Vasse, Western Australia)
This is an accurate Power Meter
The Power Meter pictured on the left has been spotted at major hardware stores, supermarkets and online. It is usually priced between $20 and $40. But, it is not reliably accurate (and the screen is hard to read). It can miss sizable electrical loads (falsely reporting 0 consumption), while others are overstated.
For example, we have seen a 5 watt load displayed as 30 watts on this less accurate power meter.
On the other hand, the Steplight / Watts Clever power consumption meter described above has the benefit of being relatively inexpensive and accurate.
- Bradley (Urangan, Queensland)
Power Consumption Meter Support & FAQ
Does it come with instructions?
How accurate are the readings?
The Power Meter has been tested against high-end power meters such as the Power-Mate (which we also sell). The readings of actual power consumption (Watts) from the Power Meter are comparable to those produced by the Power-Mate. The main difference is that the Power-Mate units produce very high accuracy readings to multiple decimal points and have a different user interface.
What is the lowest power consumption it can measure?
How many tariffs can be entered?
I’m not getting a response from my meter, is it faulty?
How does the clock / timer work?
The clock will initially show Minutes : Seconds, and then Hours : Minutes after one minute has passed.
After 1 day the 24 hour timer resets to 0 and ’1′ is added to the Day counter. To see the total appliance run-time go to the ‘kWh’ screen where total Days are displayed in addition to the 24 hour timer. For example, after 55 hours of an appliance using more than 0 watts it will read 2 Day and 07:00.
Why does the timer stop?
The timer will stop accumulating when the plugged-in appliance drops to 0 watts.
You can use this feature to measure actual run-time of appliances. For example, you can plug your fridge in for 24 hours and observe the clock to see how much of that time the compressor was actually running. This is great for troubleshooting ‘problem’ loads around your home.
The Timer, Cost and kWh will all continue to accumulate until you reset the readings. If you need a timer that keeps running the entire time, we suggest the Power Mate Lite.
Is the cost set in dollars or cents?
The cost isn’t pre-set to cents or dollars, it is just a number (’00.00′), so you can set it however you like.
For example, if your electricity rate is 20c per kWh we recommend setting the price at ’00.20′ (as in $00.20), rather than ’20.00′ (as in 20.00 cents).
Does the Power Meter measure Real Power?
Yes - the Power Meter measures ‘Real Power’ – which is what you are billed for. Power is measured instantaneously in Watts (W) and over time in kilowatt-hours (kWh). Other cheap power meters do not perform measurements accurately and do not always display real power.
The power meter will show you (among other things): Volts (V), Amps (A), Power Factor and Real Power (W). This is how you calculate real power in watts (don’t worry, the meter does this for you!)
- Volts x Amps x Power Factor (as a fraction of 1) = Watts
- 250 volts x 0.7 amps x 0.60 power factor = 105 Watts (Real Power)
- 250 volts x 0.7 amps = 175 VA (Apparent Power)
You can see from the above example why getting this calculation right is important. Other power meters sometimes fail to do this correctly.
If analysing this information is important to you we suggest buying the Power Mate Lite which displays all of this data on one screen.