50A Current Sensor Non-invasive AC
This module is a split-core type AC Current sensor that makes it easier to install, unobtrusively. It could be powered up using 3.3V to 5V power supply. The signal output is from 0-1V. You can map the voltage to the limit of this sensor, which is 50A, with an accuracy of =-1%. Its cable is 1m long.
Interfacing this to your Arduino would be a little tedious, but the workload would be worth it. You need a burden resistor of 18 ohms for a supply voltage of 3.3V and 33 ohms for a supply voltage of 5V, a 10 µf capacitor, 2 resistors of the same value with resistance from 10k to 470k ohms.
A go-to sensor for energy monitoring related projects.