> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Gravity: Analog AC Current Sensor

**Type:** Product page · **SKU:** SEN0211 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-analog-ac-current-sensor.html ([markdown](https://core-electronics.com.au/gravity-analog-ac-current-sensor.html.md))

When you want to measure AC current it is impractical and hazardous to cut in to your live wiring. The analog AC current sensor developed by DFRobot is a good solution to this problem. Using induction you can measure AC current without intrusive methods. Place your AC wire inside the unit, connect the unit to the sensor board using the 3.5mm jack connector and connect the sensor board to an analog input on your microcontroller. Use this sensor to measure AC motors, lighting equipment, air compressors or any other devices that use AC current.

## Pricing

- **Price:** $33.30 (inc GST) — $30.27 AUD, exc GST
- **Quantity discounts:** 6+ $28.76 (exc GST) · 12+ $27.55 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 4 today, and up to 30 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0211:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0211:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

When you want to measure AC current it is impractical and hazardous to cut in to your live wiring. The analog AC current sensor developed by DFRobot is a good solution to this problem. Using induction you can measure AC current without intrusive methods. Place your AC wire inside the unit, connect the unit to the sensor board using the 3.5mm jack connector and connect the sensor board to an analog input on your microcontroller. Use this sensor to measure AC motors, lighting equipment, air compressors or any other devices that use AC current.

### Features

- Supports Gravity 3-Pin interface
- Analog output

###  Specification

- Module 
    - Operating Voltage: 3.3V - 5.5V
    - Analog Output Voltage: 0.2V - 2.8V (DC)
    - AC Signal Input Range: 0 - 1V (AC)
    - Relative Error: + 3%
    - Interface: PH2.0-3P
    - Dimensions: 32 \* 27 mm/1.26 \* 1.06 inches

- AC Current Sensor Probe 
    - AC Measurement Range: 0 - 20A
    - AC Signal Output: 0 - 1V AC map onto 0-20 A
    - Non-linearity: ±3% (10% ~ 120% of the rated input current)
    - lead length: 1.5 meters
    - Opening and closing times: >= 1000 times
    - Working temperature: -25°C to +70°C
    - Dimensions: 13 \* 13mm/ 0.51 \* 0.51 inches

**Documents**

- Product Wiki
- More Documents

###  Parts List

- Analog AC Current Sensor x1
- Open type AC transformer probe x1
- Analog Sensor Cable x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0211.jpg)