SparkFun Air Quality Sensor - SGP40 (Qwiic)

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SKU: SEN-18345 Brand: Sparkfun

The SparkFun SGP40 Air Quality Sensor provides a measurement of the quality of the air in your room or house. The SGP40 is based on Sensirion's CMOSens® technology...

$31.85 AUD, inc GST

$28.95 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow* Disclaimer:
For next-day delivery, the shipping address must be in the AusPost next-day network, eParcel Express must be selected, and the order must be placed before 2PM AEST Mon-Thurs excluding NSW Public Holidays. Orders may be delayed due to AusPost pickup timings and order verifications. eParcel Express is typically a 1-day service within the AusPost next-day network, though it is sometimes 2+ days.

Quantity Discounts:

10-25 $28.08 (exc GST)
25+ $27.51 (exc GST)

The SparkFun SGP40 Air Quality Sensor provides a measurement of the quality of the air in your room or house. The SGP40 is based on Sensirion's CMOSens^® technology and uses a metal oxide (MOx) sensor with a temperature controlled micro hotplate and provides a humidity-compensated volatile organic compound (VOC) based indoor air quality signal. Both the sensing element and VOC Algorithm feature an unmatched robustness against contaminating gases present in real world applications enabling a unique long term stability as well as low drift and device to device variation.

The SGP40 does not return specific concentrations or VOC gases. Instead, it outputs a digital value based on common VOC gases present in an indoor environment and this value can be combined with Sensirion's VOC Index Algorithm to detect the relative intensity of VOC events in relation to the average readings in a 24hr period. Think of the SGP40 as a sensitive electronic nose for detecting VOCs in a room.

The SGP40 communicates via I²C so naturally Sparkfun broke out the pins on the sensor to Qwiic connectors so you can easily connect it to SparkFun's ever growing Qwiic Ecosystem!

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can't hook it up wrong.

Get Started with the SGP40 Air Quality Sensor Hookup Guide

Features

Uses I²C interface (Qwiic-enabled)
- I²C Address: 0x59
- 2x Qwiic connectors
Operating voltage range:
- 1.7V - 3.6V (Typ. 3.3V)
- The Qwiic interface provides 3.3V
Typical current consumption:
- 2.6mA during continuous operation (at 3.3V)
- 34µA when idle (heater off)
Output signal:
- Digital raw value (SRAW): 0 - 65535 ticks
- Digital processed value (VOC Index): 0 - 500 VOC Index points
Switch-on behavior:
- Time until reliably detecting VOC events: <60s
- Time until specifications are met: <1h
Recommended sampling interval:
- VOC Index: 1s
- SRAW: 0.5s - 10s (Typ. 1s)

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