DFRobot
Gravity: Analog 20A Current Sensor
The Gravity Analog 20A Current Sensor measures both AC and DC current using the Hall effect, outputting a proportional analog voltage to your microcontroller...
The Gravity Analog 20A Current Sensor measures both AC and DC current using the Hall effect, outputting a proportional analog voltage to your microcontroller. With high-voltage isolation built into the circuit design and a non-conductive acrylic base plate, it's designed for safe use in automation and power monitoring applications.
The standard Gravity 3-pin interface allows plug-and-play connection to Arduino and other compatible boards via the included analog sensor cable.
Key Features
- AC & DC Measurement – 0 to ±20 A DC or 0 to 17 A RMS AC
- Hall Effect Sensing – Non-contact current measurement
- High-Voltage Isolation – Safe measurement up to 220V AC / 311V DC
- Analog Output – Proportional voltage output via Gravity 3-pin connector
- Safety Features – Non-conductive acrylic base plate to prevent short circuits
- ±3% Accuracy – Suitable for monitoring and automation applications
- Compact – 39 × 22 × 17 mm, 18 g
Specifications
- Power Supply – 5.0V
- DC Current Range – 0 to ±20 A
- AC Current Range – 0 to 17 A (RMS)
- Max Voltage Endurance – 220V AC / 311V DC
- Relative Error – ±3%
- Interface – Gravity PH2.0-3P
- Dimensions – 39 × 22 × 17 mm
- Weight – 18 g
Ideal For
- Power monitoring and energy management
- Automation and control systems
- Battery charge/discharge monitoring
- Arduino-based current measurement projects
Package Contents
- 1× Gravity Analog 20A Current Sensor
- 1× Gravity Analog Sensor Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- 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 chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- 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.
Find this product in
Brands
Sensors & Input
Supplier page — dfrobot.com
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Related Tutorials
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