P3
P3 Kill A Watt Connect P4498 Electricity Usage Monitor
$39.89
Reference price as of 2026-08-24 — check Amazon for the current price and stock.
The right tool for measuring the real power draw of individual devices — useful for right-sizing a generator or power station before you buy one.
Full spec sheet
| Key specs | |
| Brand | P3 |
| Price | $39.89 |
| Capacity | — |
| Continuous output | — |
| Peak / surge output | — |
| Weight | 0.31 lb |
| Battery chemistry | — |
| Dimensions (L x W x H) | 4 x 2 x 2 |
| Includes solar panel | No |
| Use cases | Home, Apartment |
| Other verified specs | |
| Model | P4498 |
| Max current | 15A |
| Max power | 1875VA |
| Operating voltage | 115VAC |
| Cord length | 35 in |
Pros
- Separate plug/display connected by a 35-inch cord, so you can read it without contorting behind furniture
- Stores minimum and maximum readings in memory
- Measures volts, amps, watts, frequency, power factor, and VA — full diagnostic picture
- Magnetic display attachment for flexible placement
Cons
- 15A / 1875VA max limits it to typical household electronics, not large appliances
- No app or Bluetooth connectivity
- Display unit still needs to sit near an outlet
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