Gravity: Analog AC Current Sensor (10A)

Gravity: Analog AC Current Sensor enables convenient AC current monitoring without cutting wires or modifying existing circuits. The measurement solution combines an open‑type current transformer probe with a signal conversion module that outputs an analog voltage readable by common microcontroller platforms. Simply clamp the probe around a live AC wire and connect the 3.5 mm plug to the conversion board to obtain a proportional signal representing current flow. This non‑invasive electrical monitoring module supports quick deployment in energy monitoring projects, appliance diagnostics, and equipment supervision systems involving AC loads such as AC motors, lighting equipment, and compressors.

Non‑Contact Current Measurement for Safer Monitoring

An open‑type transformer clamp allows AC current measurement without direct electrical contact. The sensing probe simply clips around a conductor, eliminating hazardous wiring modifications or soldering work. This inductive measurement approach improves electrical safety while maintaining stable signal acquisition. Such characteristics make the clamp‑style current detection system suitable for household appliances, industrial equipment monitoring, and quick diagnostic setups where circuit interruption is undesirable.

Analog Output Designed for Microcontroller Integration

The included signal conditioning board converts the transformer output into a stable analog voltage range of 0.2–2.8 V, allowing direct reading through common development platforms. Compatibility with 3.3 V and 5 V logic simplifies integration with embedded systems including Arduino development boards and other microcontroller platforms. The Gravity interface further streamlines wiring using a standard PH2.0‑3P connector for rapid prototyping.

Flexible Measurement Range for Appliance and Equipment Monitoring

The transformer probe supports a linear 0–10 A AC current range with high accuracy and low non‑linearity, making the sensing assembly suitable for a variety of monitoring tasks. Household electrical loads, lighting circuits, and small industrial equipment can be analyzed through simple clamp‑on measurement. The extended frequency range from 50 Hz to 1 kHz also allows reliable monitoring of common AC power environments.

Figure: Gravity Analog AC Current Sensor connection diagram (Arduino UNO)

Figure: Measure and display household appliances AC current

This clamp‑based AC current sensing module is suitable for appliance power monitoring, electrical load analysis, smart energy measurement, and automation equipment diagnostics. Educational experiments, embedded monitoring systems, and STEM Education projects can leverage the gravity‑interface sensor board for safe and simple current measurement.

• Non‑contact AC current measurement with improved electrical safety
• 0–10A measurement range suitable for appliance and equipment monitoring
• Analog output compatible with 3.3V and 5V microcontrollers
• Gravity PH2.0‑3P interface simplifies wiring and prototyping

AC Current Signal Conversion Module

• Input Voltage (VCC): 3.3V-5.5V
• Interface: Gravity Analog (PH2.0-3P，analog voltage output 0.2-2.8V DC)
• AC Voltage Input Range: 0-1V (AC RMS)
• Relative Error: ±4%
• Dimension: 32 × 27 mm /1.26 × 1.06 in
• Weight: 5g

Open Type AC Transformer Probe

• AC Current Range: 0-10 A
• Signal Output (standard Φ3.5mm 3P plug): 0-1V AC voltage, linear corresponding range 0-10A
• Accuracy: ±1%
• Non-linearity: ≤±0.2%
• Frequency Range: 50Hz ~ 1kHz
• Cable Length: 1m
• Working Temperature: -25 ℃ ~ +70 ℃
• Opening Size: 13 × 13 mm / 0.51 × 0.51 in
• Weight: 50 g

• AC Current Signal Conversion Module ×1
• Open Type AC Transformer Probe (10A) ×1
• Gravity-3P Analog Sensor Cable ×1

• AC motor automatic monitoring
• Lighting and electrical equipment measurement
• Household appliance energy monitoring
• Embedded electrical load analysis