DFRobot Gravity Analog AC Current Sensor - Non-Invasive Clamp buzzer module Serial ports are communication interfaces

Serial ports are communication interfaces from one device to another

and basically the more expensive once are more comfortable and louder but our official iPhone headset mic did not work

Easy to integrate: adds useful value when choosing parts for a build

Transmit-receive distance: 1-20mm

DFRobot Gravity Analog AC Current Sensor - Non-Invasive Clamp buzzer module Serial ports are communication interfacesAdd Reliable Current AC Sensor Analog Gravity Sensing to Your Next Build Current AC Sensor Analog Gravity Gravity Analog AC Current Sensor measures AC current through a clamp style probe, so you can monitor current without cutting the wire under test. It is a good fit for energy logging, appliance studies, lab demos, and maker projects that need safe current sensing with an Arduino compatible analog input. Important: Use the official DFRobot links