page_title: Kill A Watt
hierarchical_section_title: Kill A Watt
caption_attribution_description: English: A Kill-a-Watt meter from P3 International displays a current draw from a Christmas display of 10.27amp.
context_page_description: The Kill A Watt is an electricity usage monitor manufactured by Prodigit Electronics and sold by P3 International. It measures the energy used by devices plugged directly into the meter, as opposed to in-home energy use displays, which display the energy used by an entire household. The LCD shows voltage; current; true, reactive, and apparent power; power factor; energy consumed in kWh; and hours connected. Some models display estimated cost.
  Having a NEMA 5-15 plug and receptacle, and rated for 115 VAC, the Kill A Watt is sold for the North American market. The unit is manufactured by the Taiwanese company Prodigit, which also makes 230 Vac models of similar appearance and functionality for European Schuko, U.K. BS 1363 and Australian AS 3112 receptacles, and a model compatible with 100 VAC for the Japanese market. The basic models support current up to 15 amperes, power up to 1,875 VA.
  The device can give an indication of the standby power used by appliances.
context_section_description: The Kill A Watt (a pun on kilowatt) is an electricity usage monitor manufactured by Prodigit Electronics and sold by P3 International.  It measures the energy used by devices plugged directly into the meter, as opposed to in-home energy use displays, which display the energy used by an entire household.  The LCD shows voltage; current; true, reactive, and apparent power; power factor (for sinusoidal waveform); energy consumed in kWh; and hours connected.  Some models display estimated cost.
  Having a NEMA 5-15 plug and receptacle, and rated for 115 VAC (maximum 125Vac), the Kill A Watt is sold for the North American market.  The unit is manufactured by the Taiwanese company Prodigit, which also makes 230 Vac models of similar appearance and functionality for European Schuko, U.K. BS 1363 and Australian AS 3112 receptacles, and a model compatible with 100 VAC for the Japanese market (2022-04, marketed there as the Watt Checker [ワットチェッカー] Plus by other companies). The basic models support current up to 15 amperes, power up to 1,875 VA (the 230Vac equivalents also allow up to 15A, corresponding to 3,750 VA).
  The device can give an indication of the standby power used by appliances.
caption: This Kill A Watt model P4400 is displaying a current draw of 10.27 amp in this mode.
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