DFRobot
Gravity: Analog AC Current Sensor (10A)
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...
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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
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- RMS
- RMS is a way of describing the effective level of an AC signal, such as an audio output voltage. It helps compare audio output levels more meaningfully than a peak voltage number.
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Brands
Sensors & Input
Supplier page — dfrobot.com
Supplier Description · 613.9 KB · Click any page to view full size
SEN0288 gravity analog ac current sensor 10a dimension V1.0
Mechanical Drawings · 24.7 KB · Click any page to view full size
SEN0288 gravity analog ac current sensor 10a schematics V1.0
Schematic · 79.2 KB · Click any page to view full size
Related Tutorials
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