Arduino Compatible 30A Current Sensor Module (ACS712)

You need to know how much current is actually pulling through a circuit right now. Not a multimeter clip you have to hold. Not a guess. This Hall Effect sensor reads it live, handles up to 30A, and gives you a clean 66mV/A output ratio your Arduino can log or act on. It measures both positive and negative flow, so direction matters in your build? Covered. The current path is isolated from the logic pins, so a spike on the high-current side doesn't take out your microcontroller. At 31mm by 13mm it tucks into any project without crowding

• Measures up to 30A with 66mV/A output ratio
• Reads both positive and negative current flow (bidirectional)
• Based on ACS712 Hall Effect IC — no shunt resistor needed
• Current path electrically isolated from logic pins for microcontroller safety
• Compact 31mm × 13mm board with onboard power indicator