DFRobot Gravity: SFA40 formaldehyde sensor module 0-1000 ppb

DFRobot Gravity: SFA40 formaldehyde sensor mo

DFRobot

DFRobot Gravity: SFA40 formaldehyde sensor module 0-1000 ppb SEN0661

Name: DFRobot Gravity: SFA40 formaldehyde sensor module 0-1000 ppb SEN0661
Brand: DFRobot
SKU: DF02661
Price: 66.48 USD
Availability: InStock

Item No.: DF02661

HAN: SEN0661

EAN: 4060137013850

HS Code: 9031808000

Lagerstufe: Neu

66,48 $

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Net: 55,87 $

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Gravity: SFA40 formaldehyde sensor module with Sensirion SFA40 chip for selective HCHO measurement from 0 to 1000 ppb. The module provides ±20 ppb accuracy, integrated temperature and humidity compensation, and a Gravity I2C interface. More product details

Product Description

The Gravity: SFA40 formaldehyde sensor module SEN0661 is an electrochemical sensing module for measuring formaldehyde (HCHO) in indoor environments. The Gravity: SFA40 Formaldehyde (HCHO) Sensor (0-1000ppb, ±20ppb Accuracy) variant is based on the Sensirion SFA40 sensor chip and is intended for selective detection of low HCHO concentrations. Integrated temperature and humidity sensing from the SHT4x series provides automatic environmental compensation for stable measurement results.

The module uses a Gravity I2C interface for integration into microcontroller-based and air-quality monitoring systems. Low cross-sensitivity to ethanol supports applications where common household vapors should have minimal influence on the formaldehyde reading.

Technical Features

Electrochemical formaldehyde sensor module for HCHO measurement
Measurement range: 0 to 1000 ppb
Accuracy: ±20 ppb
Detection limit: 20 ppb
Sensirion SFA40 sensor chip
Integrated temperature and humidity compensation via SHT4x
Maximum ethanol cross-sensitivity: below 0.3%
Gravity I2C interface for microcontrollers and embedded systems

Application Areas

Typical applications include indoor air-quality monitoring, experimental air measurement setups, building and HVAC monitoring, and detection of formaldehyde emissions from furniture, coatings, or construction materials. The module is suitable for development projects, test setups, and stationary air-quality instruments requiring selective HCHO detection in the ppb range.

What's Included

Gravity: SFA40 HCHO Sensor x1
Gravity 4pin sensor cable x1

Dimensions and Weight
Item information	Value
GTIN:	4060137013850
HAN:	SEN0661
Category:	Gas Sensor
Accuracy:	±20 ppb
Application Interface:	Gravity I2C
Sensing Principle:	electrochemical
Target Gas:	Formaldehyde (HCHO)
Measurement Range Min.:	0
Measurement Range Max.:	1000
Detection Limit:	20
Sensor Chip:	Sensirion SFA40
Max. Cross-Sensitivity to Ethanol:	0.3
Temperature and Humidity Compensation:	Ja
Shipping weight:	0,01 kg
Item weight:	0,01 kg
Dimensions ( Length × Width ):	3,20 × 2,20 cm

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Manufacturer according to GPSR
DFRobot, Room 602, 603, No. 2 Boyun Road, Zhangjiang Hi-Tech Park, China (Shanghai) Pilot Free Trade Zone, 201210 shanghai, China, https://eckstein-shop.de/DFRobot-Marken