When you want to measure the AC current, are you still having trouble cutting the wires, wiring, or soldering. Gravity: Analog AC Current Sensor comes to the rescue, eliminating the need to cut wires or reconnect circuits. Simply clamp the AC transformer probe on the AC line, and then plug the 3.5mm headphone jack into the signal conversion module to read the current AC current value. The analog output is designed to be compatible with 3V3/5V micro-controller. It can be conveniently used for AC current measurement to monitor AC motors, lighting equipment, air compressors, etc.
Features
- Non-contact measurement, high safety
- Multiple ranges for various measurement scenarios
- Compatible with 3V3/5V micro-controller
Connection Example - DFRduino UNO

Specifications
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 x 27 mm
- Weight: 5g
Open Type AC Transformer Probe
- AC Current Range: 0-20A
- Signal Output (standard Φ3.5mm 3P plug): 0-1V AC voltage, linear corresponding range 0-20A
- Accuracy: ±1%
- Non-linearity: ≤±0.2%
- Frequency Range: 50Hz~1kHz
- Cable Length: 1m
- Working Temperature: -25°C~+70°C
- Opening Size: 13 x 13 mm
- Weight: 50g
Resources
Pinout

Label |
Name |
Function Description |
1 |
- |
GND |
2 |
+ |
Power Input (3.3V-5.5V) |
3 |
A |
Signal Output (0.2-2.8VDC) |
4 |
Φ3.5mm 3P plug |
AC Transformer Input Signal |
Package Contents
- 1x AC Current Signal Conversion Module
- 1x Open Type AC Transformer Probe (20A)
- 1x Gravity-3P Analog Sensor Cable