Gas & Air Quality Sensors

SKU: DF-SEN0678 | Brand: DFRobot

This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitor...

SKU: DF-SEN0663 | Brand: DFRobot

This ultra-compact particulate matter sensor breakout is built around the Bosch BMV080 sensing unit, using laser-based light scattering with a fanless measurement principle. It can monitor PM1, PM2.5 and PM10 mass con...

SKU: AF-6455 | Brand: Adafruit

Build a digital nose for indoor air quality projects with this SGP41 gas sensor breakout. The Sensirion SGP41 is a fully integrated MOX gas sensor with I2C interfacing, so you do not need to manage heater control or a...

SKU: DF-SEN0654 | Brand: DFRobot

This lab-grade methane sensor is designed for quantitative CH₄ measurement in research settings, using TDLAS technology to report methane concentration in %LEL rather than the broad estimates typical of MQ-style gas s...

SKU: DF-SEN0475 | Brand: DFRobot

Measure hydrogen fluoride concentration with a factory-calibrated electrochemical probe that supports analogue, I2C and UART output modes. It is designed for quickly building an HF concentration detector for industria...

SKU: DF-SEN0661 | Brand: DFRobot

This Gravity-series module is a high-precision electrochemical sensor for monitoring formaldehyde (HCHO) in indoor air. It is built around Sensirion’s SFA40 sensing chip and is designed to selectively detect HCHO whil...

SKU: DF-SEN0469 | Brand: DFRobot

This calibrated gas sensor measures ammonia concentration in the environment using an electrochemical probe. It supports three output modes — analogue, I2C and UART — so it can slot into a wide range of microcontrolle...

SKU: DF-SEN0659 | Brand: DFRobot

This industrial CO2 probe is built for reliable carbon dioxide monitoring in environments such as indoor air quality systems, pipelines, greenhouses and fresh air systems. It uses NDIR sensing to measure CO2 from 400 ...

SKU: SF-COM-21506 | Brand: SparkFun

The ZMOD4450 is a compact gas sensor module for detecting gases associated with food ripening or rotting. It is intended for refrigeration air quality (RAQ) applications such as food storage and shipping, including hu...

SKU: DF-SEN0377 | Brand: DFRobot

This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot.  This sensor supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), H2, NO2, NH3, and integrates various gas c...

SKU: SB-21819 | Brand: Little Bird

The Pico Air Monitoring Expansion is a HAT for Raspberry Pi Pico that measures suspended particulate matter (PM1.0, PM2.5, and PM10) in the air. It uses a PMSA003 digital laser dust sensor and includes an onboard 0.91...

SKU: PR-PIM181 | Brand: Little Bird

Enviro pHAT packs 4 different sensors, letting you measure temperature, pressure, light level, colour, 3-axis motion, compass heading, and analog inputs. That's up to 10 different variables!It's ideal for monitoring c...

SKU: PR-PIM203 | Brand: Little Bird

Enviro pHAT packs 4 different sensors, letting you measure temperature, pressure, light level, colour, 3-axis motion, compass heading, and analog inputs. That's up to 10 different variables! It's ideal for monitoring ...

SKU: SF-SEN-29260 | Brand: SparkFun

Measure high concentrations of carbon dioxide with a Qwiic breakout built around Sensirion’s STC31 sensor. It is designed for CO2 measurements up to 100% volume, using a thermal conductivity measurement principle and ...

SKU: DF-SEN0658 | Brand: DFRobot

Bring multiple environmental measurements into one rugged field sensor for Arduino, IoT and monitoring projects. This 9-in-1 unit measures ultrasonic wind speed and direction, air temperature, relative humidity, atmos...