5A Range of Single-Phase AC Current Sensor Module

The Single-Phase AC Current Sensor Module measures alternating current in a single-phase circuit up to 5 A and turns it into an analog signal that an Arduino, ESP32 or other microcontroller can read on an ADC pin. It is a simple way to see how much current a lamp, fan, pump or small appliance draws, and to detect whether a load is switched on or off.

Single-Phase AC Current Sensor Module Specifications

• Measured current: single-phase AC
• Measuring range: up to 5 A
• Output: analog signal for a microcontroller ADC input
• Works with: Arduino, ESP32 and ESP8266; Raspberry Pi through an external ADC, since the Pi has no analog inputs

Single-Phase AC Current Sensor Module Applications

• Measuring the current of lamps, fans, pumps and small appliances
• Detecting whether a machine or load is running
• Home energy monitoring and IoT dashboards with ESP32
• Overcurrent alarms and automatic shut-off projects
• Electrical engineering labs and student projects

What's in the Box

• 1 × single-phase AC current sensor module, 5 A range

Tip: Take many samples over at least one full mains cycle (20 ms at 50 Hz) and calculate the RMS current in your code instead of relying on a single reading. Mains voltage is dangerous: keep all live wiring insulated and enclosed, and never touch the circuit while it is powered.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.