A non-contact AC current sensor with a clamp-on transformer probe, capable of measuring 0–10 A AC. Simply clamp the probe around an AC line and connect the 3.5 mm plug to the signal conversion module — no wire cutting or circuit modification required.

The Gravity analogue interface outputs a 0.2–2.8 V DC signal proportional to the measured current, compatible with both 3.3 V and 5 V microcontrollers. Ideal for monitoring AC motors, lighting, air compressors, and other mains-powered equipment.

Key Features

• Non-Contact Measurement – Clamp-on probe, no wire cutting needed
• 0–10 A AC Range – Linear output proportional to current
• Gravity Analogue Interface – PH2.0-3P connector, 0.2–2.8 V DC output
• 3.3 V / 5 V Compatible – Works with Arduino, Raspberry Pi, and other microcontrollers
• High Accuracy – ±1% probe accuracy, ±4% module relative error

Specifications

Signal Conversion Module

• Input Voltage – 3.3–5.5 V
• Output – 0.2–2.8 V DC analogue (Gravity PH2.0-3P)
• AC Voltage Input Range – 0–1 V AC RMS
• Relative Error – ±4%
• Dimensions – 32 × 27 mm
• Weight – 5 g

AC Transformer Probe

• AC Current Range – 0–10 A
• Signal Output – 0–1 V AC via standard 3.5 mm plug
• Accuracy – ±1%
• Non-Linearity – ≤±0.2%
• Frequency Range – 50 Hz to 1 kHz
• Cable Length – 1 m
• Operating Temperature – −25 °C to +70 °C
• Opening Size – 13 × 13 mm
• Weight – 50 g

Ideal For

• AC motor and compressor current monitoring
• Lighting and electrical equipment measurement
• Home energy monitoring systems
• Arduino and microcontroller power metering projects

Resources

• DFRobot Wiki – Analogue AC Current Sensor