> **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

# Grove - Formaldehyde Sensor (SFA30) - HCHO Sensor - Arduino/ Raspberry Pi Support

**Type:** Product page · **SKU:** SS101020972 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-formaldehyde-sensor-sfa30-hcho-sensor-arduino-raspberry-pi-support.html ([markdown](https://core-electronics.com.au/grove-formaldehyde-sensor-sfa30-hcho-sensor-arduino-raspberry-pi-support.html.md))

Features Low cross-sensitivity to alcohol Standard formaldehyde measurement range: 0 ~ 1000 ppb Long-term stability and 6 years’ service...

## Pricing

- **Price:** $109.95 (inc GST) — $99.95 AUD, exc GST
- **Quantity discounts:** 5+ $95.95 (exc GST) · 10+ $92.95 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 today; more stock is typically available with a 8–10 day lead time.

## How to buy

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## Description

**Features**

- Low cross-sensitivity to alcohol
- Standard formaldehyde measurement range: 0 ~ 1000 ppb
- Long-term stability and 6 years’ service lifetime
- Patented electrochemical cell with anti-dry technology
- I2C/UART interface with lifetime-calibrated output
- Maintain performance under different circumstances: compensated temperatures and humidity via built-in Sensirion RHT sensor by advanced algorithms.

Grove Formaldehyde Sensor is one of the Sensor Grove toolsets that standardized connectors of SFA30 Formaldehyde Sensor and make it modularly. With a [Base Shield](https://www.seeedstudio.com/Base-Shield-V2.html), it simplifies the process of detecting formaldehyde significantly. The primary module is made by SENSIRION based on electrochemical sensing technology optimized for the lowest false alarm rates. The basic theory is that the gas concentration signal decomposes the electrolyte into positive and negative charged ions, and the signal is transmitted through the electrode.

Grove Formaldehyde Sensor has low cross-sensitivity to alcohol and it also has long-term stability as long as 6 years because of advanced anti-dry technology. It is factory-calibrated and can be easily connected with the I2C or UART interface into your device. The integrated Sensirion RHT sensor compensating fully temperature and humidity guarantee a dependable function in changing indoor environments. And the low power consumption allows for battery operation. This makes Grove Formaldehyde Sensor a reliable, easy-to-use, and high-quality HCHO&RHT combo sensing solution.

**Hardware Overview**

![](https://core-electronics.com.au/attachments/localcontent/hardware_488639cf378.png)

**Application**

- Real-time detecting and reading HCHO gas concentration in parts per billion
- Air Conditioners and Air Exchangers
- Air Purifiers
- Indoor Air Quality Monitors

**Part List**

| Grove Formaldehyde Sensor SFA30 | **x1** |
|---|---|
| 5 Pins Header | **x1** |

#### Documentations

- [SFA30 datasheet](https://core-electronics.com.au/attachments/localcontent/Sensirion_Formaldehyde_Sensors_SFA30_Datasheet_67854573d44.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_3595.jpg)