Find out which appliances are the energy abusers in your house. How much electricity does your refrigerator use? How much does your dehumidifier use? A new energy efficient appliance may be able to pay for itself in lower electricity costs, but how will you know? Plug this device into a three-prong grounded wall outlet, plug your appliance, computer, lamp, or other electrical product into the monitor, and you'll find out how efficient (or wasteful) they really are. On the large LCD display you'll be able to monitor the kilowatt hour consumption of an item to learn how much it costs to run. You can determine your electrical expenses by day, week, or month. You may cycle through displays including voltage (volt), amperage (amp), wattage (watt), line frequency (Hz), and power factor (VA). Specifications: Accuracy: +/- 0.2% Input Power: 115 volts AC, 60 Hz Max Current: 15 amps Max Voltage: 125 volts Max Power: 1875 VA Dimensions: 5.1 inches long x 1.6 inches thick x 2.4 inches wide Approvals: ETL (c), ETL (us) Origin: China Manufacturer Warranty: 1 Year