Reddit reviews AC Digital Multimeter, DROK Voltmeter Ammeter AC 80-260V 100A 110V 220V Voltage Amperage Power Energy 4in1 Meter 22kW 9999kWh Volt Amp Power Energy Monitor Detector Testing Gauge Red LED Digital Tube Display
We found 2 Reddit comments about AC Digital Multimeter, DROK Voltmeter Ammeter AC 80-260V 100A 110V 220V Voltage Amperage Power Energy 4in1 Meter 22kW 9999kWh Volt Amp Power Energy Monitor Detector Testing Gauge Red LED Digital Tube Display. Here are the top ones, ranked by their Reddit score.
DROK AC digital mustimeter measuring voltage range is AC 80-260V; measuring current is 0-100A; testing power range is 0-22kW; energy range is 0-9999kWh.Clear Display: With 4 bright LED digital tube windows displaying voltage, current, power, energy at the same time, all data's will be clear at a glance.External current transformer: With an external current transformer, you can use your own Sb communications adapter board.Functions: This digital multi-tester has overload alarm function; power alarm threshold pre-set function; reset energy function; power-off storage function; and serial port communication function, with a TTL serial port.Note: This module is suitable for indoor, please do not use outdoor; applied load should not exceed the rated power; wiring order can't be wrong.
Get a non-invasive ac current sensor split core transformer. Split core means you just clamp it on the power cable. It's less than $10 and you never have to touch exposed wires. Never used it though so I can't say much about it. However, I do use a DROK digital multimeter ac voltage that uses those rings. It's amazing. There's one that has a serial port communication function. Been wanting to try it but don't have the time. It's like $20.
https://www.amazon.com/DROK-Digital-Multimeter-Voltmeter-Ammeter/dp/B015PRF04I/ref=sr_1_6?ie=UTF8&qid=1525970299&sr=8-6&keywords=ac%2Bvoltage%2Bmeter%2Bdisplay&th=1
You could do it with "Stats for Tesla" or you could do it with this gizmo you'd install:
https://www.amazon.com/gp/product/B015PRF04I