The MAX471 is an older current sensor which can handle up to 50 Watt, with a maximum of 25 Volts or a current of 3 Amperes. It is officially not supported anymore however there are still many for sale ...

Which is the best current sensor for your power ... these systems often deliver low-current outputs that are safer than traditional 1- and 5-amp signals. Sensors with current outputs are almost ...

Arduino Library Supports ACS712 Current Sensor Module for 5A, 20A, and 30A - ElectroRush4u/ACS712. Arduino Library Supports ACS712 Current Sensor Module for 5A, 20A, and 30A - ElectroRush4u ... For a ...