{"title":"Gas","description":"","products":[{"product_id":"analog-co2-gas-sensor-arduino","title":"DFRobot Gravity: Analog CO2 Gas Sensor For Arduino (MG 811 Sensor) | SEN0159","description":"\u003ch2\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog CO2 Gas Sensor\u003c\/strong\u003e is the first CO2 sensor in Arduino market. The output voltage of the module falls as the concentration of the CO2 increases. The potentiometer onboard is designed to set the threshold of voltage. As long as the CO2 concentration is high enough (voltage is lower than threshold), a digital signal (ON\/OFF) will be released.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt has MG-811 sensor module which is highly sensitive to CO2 and less sensitive to alcohol and CO, low humidity \u0026amp; temperature dependency.\u003c\/li\u003e\n\u003cli\u003eOnboard heating circuit brings the best temperature for sensor to function. Internal power boosting to 6V for heating sensor best performance.\u003c\/li\u003e\n\u003cli\u003eThis sensor has an onboard conditioning circuit for amplifying output signal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eAir Quality Control\u003c\/li\u003e\n\u003cli\u003eFerment Process Control\u003c\/li\u003e\n\u003cli\u003eRoom Temperature CO2 concentration Detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage:5V\u003c\/li\u003e\n\u003cli\u003eInterface: Gravity Analog\u003c\/li\u003e\n\u003cli\u003eOne digital output\u003c\/li\u003e\n\u003cli\u003eHigh-quality connector\u003c\/li\u003e\n\u003cli\u003eImmersion gold surface\u003c\/li\u003e\n\u003cli\u003eOnboard heating circuit\u003c\/li\u003e\n\u003cli\u003eSize:32x42mm (1.26x1.65\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.dfrobot.com\/wiki\/index.php\/CO2_Sensor_SKU:SEN0159\"\u003eProduct Wiki\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e                 \u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0159\/CO2%20Sensor%20V1%20SCH.pdf\"\u003eSchematic\u003c\/a\u003e                      \u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0159\/CO2%20Sensor%20V1%20Layout.pdf\"\u003eLayout\u003c\/a\u003e                  \u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0159\/CO2b%20MG811%20datasheet.pdf\"\u003eMG811 datasheet\u003c\/a\u003e     \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003ePart List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Analog Electrochemical Carbon Dioxide Sensor (0-10000 ppm) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42290961875135,"sku":"MLE01002","price":3100.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE01002.jpg?v=1748998311"},{"product_id":"adafruit-sgp30-air-quality-sensor-breakout-voc-eco2","title":"Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2","description":"\u003ch2 class=\"product-name-large\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis SGP30 Air Quality Sensor Breakout - VOC and eCO2 is a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts at Sensirion, with I2C interfacing and fully calibrated output signals with a typical accuracy of 15% within measured values. The SGP combines multiple metal-oxide sensing elements on one chip to provide more detailed air quality signals.\u003c\/p\u003e\n\u003cdiv class=\"row-fluid build-text\"\u003e\n\u003cp\u003eThis is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) and H2 and is intended for indoor air quality monitoring. When connected to your microcontroller (running our library code) it will return a Total Volatile Organic Compound (TVOC) reading and an equivalent carbon dioxide reading (eCO2) over I2C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row-fluid build-text\"\u003e\n\u003cp\u003eThe SGP30 has a 'standard' hot-plate MOX sensor, as well as a small microcontroller that controls power to the plate, reads the analog voltage, tracks the baseline calibration, calculates TVOC and eCO2 values, and provides an I2C interface to read from. Unlike the CCS811, this sensor does not require I2C clock stretching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row-fluid build-text\"\u003e\n\u003cp\u003eThis part will measure \u003cstrong\u003eeCO2\u003c\/strong\u003e (equivalent calculated carbon-dioxide) concentration within a range of 0 to 60,000 parts per million (ppm), and \u003cstrong\u003eTVOC\u003c\/strong\u003e (Total Volatile Organic Compound) concentration within a range of 0 to 60,000 parts per billion (ppb).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note, this sensor, like all VOC\/gas sensors, has variability and to get precise measurements you will want to calibrate it against known sources!\u003c\/strong\u003e That said, for general environmental sensors, it will give you a good idea of trends and comparison. The SGP30 does have built in calibration capabilities, note that eCO2 is calculated based on H2 concentration, it is not a 'true' CO2 sensor for laboratory use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row-fluid build-text\"\u003e\n\u003cp\u003eAnother nice element to this sensor is the ability to set humidity compensation for better accuracy. An external humidity sensor is required and then the RH% is written over I2C to the sensor, so it can better calculate the TVOC\/eCO2 values.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUses I2C address 0x58\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 17.9mm x 17.9mm x 2.9mm \/ 0.7\" x 0.7\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 1.1g \/ 0.0oz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCode: 3709\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-sgp30-gas-tvoc-eco2-mox-sensor\/\"\u003eSoftware libraries, hookup guide, datasheets, schematic, EagleCAD PCB files, and Fritzing available in the product tutorial!\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cstrong\u003ePacking List:\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x SGP30 Air Quality Sensor Breakout\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eheader pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":42291005456575,"sku":"MLE00515","price":1550.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE00515.jpg?v=1755825786"},{"product_id":"adafruit-sgp40-air-quality-sensor-breakout-voc-index-stemma-qt-qwiic","title":"Adafruit SGP40 Air Quality Sensor Breakout - VOC Index - STEMMA QT \/ Qwiic","description":"\u003ch2\u003e\u003cstrong\u003e Description:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe SGP40 has a 'standard' hot-plate MOX sensor, as well as a small microcontroller that controls power to the plate, reads the analog voltage and provides an I2C interface to read from. Unlike the CCS811, this sensor does not require I2C clock stretching.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_SGP40\"\u003eWe currently have an Arduino library with examples of reading the raw value and also running the Sensirion algorithm to calculate VOC index\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_CircuitPython_SGP40\"\u003ea Python\/CircuitPython library\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ethat can be used with Linux computers like the Raspberry Pi or our CircuitPython boards.\u003c\/p\u003e\n\u003cp\u003eThis is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) and H2 and is intended for indoor air quality monitoring.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eThe SGP40 is the next generation after the SGP30, but does not give TVOC\/eCO2 values out like the SGP30.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInstead,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/Sensirion\/embedded-sgp\/tree\/master\/sgp40_voc_index\"\u003eraw signal from the sensor is processed using their software algorithm to give an overall 'air quality' value form 0 to 500.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note, this sensor, like all VOC\/gas sensors, has variability, and to get precise measurements you will want to calibrate it against known sources!\u003c\/strong\u003e That said, for general environmental sensors, it will give you a good idea of trends and comparison.\u003c\/p\u003e\n\u003cp\u003eAnother nice element to this sensor is the ability to set humidity compensation for better accuracy.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_SGP40\/blob\/master\/examples\/sgp40_voc\/sgp40_voc.ino\"\u003eAn external humidity sensor is required and then the RH% is written over I2C to the sensor\u003c\/a\u003e, so it can better calibrate the MOX sensor reading and reduce humidity\/temperature-based variations..\u003c\/p\u003e\n\u003cp\u003eNice sensor right? So we made it easy for you to get right into your next project. The surface-mount sensor is soldered onto a custom made PCB in the\u003ca href=\"https:\/\/www.adafruit.com\/?q=stemma%20qt%20sensor\" title=\"STEMMA QT form factor\"\u003e \u003cstrong\u003eSTEMMA QT\u003c\/strong\u003e form factor\u003c\/a\u003e, making them easy to interface with. The \u003ca href=\"https:\/\/learn.adafruit.com\/introducing-adafruit-stemma-qt\/what-is-stemma-qt\"\u003eSTEMMA QT connectors\u003c\/a\u003e on either side are compatible with the \u003ca href=\"https:\/\/www.sparkfun.com\/qwiic\"\u003eSparkFun Qwiic\u003c\/a\u003e I2C connectors. This allows you to make solderless connections between your development board and the SGP40 or to chain it with a wide range of other sensors and accessories using a \u003cstrong\u003ecompatible cable\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe’ve of course broken out all the pins to standard headers and added a 3.3V voltage regulator and level shifting so allow you to use it with either 3.3V or 5V systems such as the Arduino Uno, or Feather M4.\u003cbr\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_SGP40\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-end=\"1932\" data-start=\"1888\"\u003eSensor Type: SGP40 (VOC and H₂ gas sensor)\u003c\/li\u003e\n\u003cli data-end=\"2000\" data-start=\"1935\"\u003eVOC Index Range: 0–500 (calculated using Sensirion’s algorithm)\u003c\/li\u003e\n\u003cli data-end=\"2057\" data-start=\"2003\"\u003eDetectable Gases: Broad range of VOCs, Hydrogen (H₂)\u003c\/li\u003e\n\u003cli data-end=\"2107\" data-start=\"2060\"\u003eInterface: I²C (no clock stretching required)\u003c\/li\u003e\n\u003cli data-end=\"2160\" data-start=\"2110\"\u003eOperating Voltage: 3.3 V or 5 V logic compatible\u003c\/li\u003e\n\u003cli data-end=\"2235\" data-start=\"2163\"\u003eAdditional Features: Humidity compensation support via external sensor\u003c\/li\u003e\n\u003cli data-end=\"2290\" data-start=\"2238\"\u003eForm Factor: STEMMA QT \/ SparkFun Qwiic compatible\u003c\/li\u003e\n\u003cli data-end=\"2343\" data-start=\"2293\"\u003eOnboard 3.3 V regulator and logic-level shifting\u003c\/li\u003e\n\u003cli data-end=\"2343\" data-start=\"2293\"\u003eCode: 4829\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003ePacking List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × SGP40 Indoor Air Quality Sensor Breakout Board\u003c\/li\u003e\n\u003cli\u003e1 × Set of header pins (requires soldering)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":42292905115839,"sku":"MLE01168","price":1249.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE01168.jpg?v=1754708958"}],"url":"https:\/\/makerlab.ph\/collections\/gas-sensors.oembed","provider":"Makerlab PH","version":"1.0","type":"link"}