If you are wanting to measure surge current, this is relatively cheap and works well for me.
KAIWEETS Inrush Clamp Meter 1000A True RMS AC/DC Current Amp Meter, VFD, LOZ Mode, 6000 Counts, Measures Current Voltage Temperature Capacitance Resistance Diodes Continuity Duty-Cycle: Amazon.com: Industrial & Scientific
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You can use the Kill-A-Watt to measure how much an appliance/device uses during normal running as well as during a day, week, or whatever for normal use. The surge measurement would tell you what type of startup current it uses, so you can plan accordingly.
I use this, because the basic Kill-A-Watt doesn't retain accumulated usage if you lose power. You can get an extra price Kill-A-Watt that does, but this is cheaper and serves the same purpose.
Poniie PN2000 Plug-in Kilowatt Electricity Usage Monitor Electrical Power Consumption Watt Meter Tester w/ Extension Cord - - Amazon.com
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