20 Best Mg811 Co2 Sensor Circuit [2025]

Are you looking for the best Mg811 Co2 Sensor Circuit? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Mg811 Co2 Sensor Circuit.

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1 Air Quality Monitor, 3-in-1 Combo CO2 Moisture Meter Pollution Meter, Sensor, Tester; Detect & Test... Air Quality Monitor, 3-in-1 Combo CO2 Moisture Meter Pollution Meter, Sensor, Tester; Detect &...
2 Air Quality Monitor for CO2, CO2 Meter, Temperature, Humidity, Air Gas Detector for Home Office Car... Air Quality Monitor for CO2, CO2 Meter, Temperature, Humidity, Air Gas Detector for Home Office...
3 Gravity: CCS811 Air Quality Sensor for Arduino | Low Power, Fast Warm-up | Suitable for Air... Gravity: CCS811 Air Quality Sensor for Arduino | Low Power, Fast Warm-up | Suitable for Air...
4 Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Grow Room and CO2 Generator,... Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Grow Room and CO2...
5 Airthings 2930 Wave Plus - Radon & Air Quality Monitor (CO2, VOC, Humidity, Temp, Pressure) 20 x 30... Airthings 2930 Wave Plus - Radon & Air Quality Monitor (CO2, VOC, Humidity, Temp, Pressure) 20 x...
6 ELEGOO UNO Project Super Starter Kit with Tutorial and UNO R3 Compatible with Arduino IDE ELEGOO UNO Project Super Starter Kit with Tutorial and UNO R3 Compatible with Arduino IDE
7 ACDelco GM Original Equipment 213-928 Multi-Purpose Temperature Sensor ACDelco GM Original Equipment 213-928 Multi-Purpose Temperature Sensor
8 Nilight - 50004R 120 Pcs/60 Pairs Quick Splice Wire Terminals T-Tap Self-stripping with Nylon Fully... Nilight - 50004R 120 Pcs/60 Pairs Quick Splice Wire Terminals T-Tap Self-stripping with Nylon...
9 KOOKYE 16 in 1 Smart Home Sensor Modules Kit for Arduino Raspberry Pi DIY Professional KOOKYE 16 in 1 Smart Home Sensor Modules Kit for Arduino Raspberry Pi DIY Professional
10 CO2 Carbon Dioxide Air Quality Monitor, Pollution & Ventilation Meter, Tester; Detect & Test Indoor... CO2 Carbon Dioxide Air Quality Monitor, Pollution & Ventilation Meter, Tester; Detect & Test...
11 ELEGOO Upgraded 37 in 1 Sensor Modules Kit with Tutorial Compatible with Arduino IDE UNO R3 MEGA... ELEGOO Upgraded 37 in 1 Sensor Modules Kit with Tutorial Compatible with Arduino IDE UNO R3 MEGA...
12 Autopilot APC8200 CO2 w/15' Remote Sensor Monitor & Controller, Blue Autopilot APC8200 CO2 w/15' Remote Sensor Monitor & Controller, Blue
13 Aeotec Multisensor 6, Z-Wave Plus 6-in1 motion, temperature, humidity, light, UV, vibration sensor Aeotec Multisensor 6, Z-Wave Plus 6-in1 motion, temperature, humidity, light, UV, vibration sensor
14 CO2 Meter Indoor Air Quality Monitor Carbon Dioxide Detector Alarm Humidity Temperature Meter NDIR... CO2 Meter Indoor Air Quality Monitor Carbon Dioxide Detector Alarm Humidity Temperature Meter...
15 Denso12594452 Oxygen Sensor Denso12594452 Oxygen Sensor
16 Qingping Air Monitor Lite, Apple HomeKit Compatible Wi-Fi Indoor Air Quality Meter Detects Home CO2,... Qingping Air Monitor Lite, Apple HomeKit Compatible Wi-Fi Indoor Air Quality Meter Detects Home...
17 Elitech WJL-6000 Freon Leak Detector Halogen Gas Tester HVAC Refrigerant AC Sniffer R22 R410A R134A Elitech WJL-6000 Freon Leak Detector Halogen Gas Tester HVAC Refrigerant AC Sniffer R22 R410A R134A
18 SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Home, Office or School (CO2, Temperature,... SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Home, Office or School (CO2,...
Bestseller No. 1
Air Quality Monitor, 3-in-1 Combo CO2 Moisture Meter Pollution Meter, Sensor, Tester; Detect & Test...
  • Functions:New 3-in-1 air quality monitor for CO2 Detector,hazard assessment, temperature and humidity detection, intelligent alarm system, gas...
  • High-performance chip is accurate and more outstanding.
  • Carbon dioxide 1s/time real-time refresh. Using more professional infrared optical principles to accurately and quickly detect carbon dioxide.
  • Large screen design, clear and easy to see.made of fine quality material, practical, easy to operate and use, has a long service life.
  • Application areas: agricultural planting, greenhouse vegetables, production warehouse, raw material processing, home interior, etc.
SaleBestseller No. 2
Air Quality Monitor for CO2, CO2 Meter, Temperature, Humidity, Air Gas Detector for Home Office Car...
  • REAL-TIME MONITORING:This carbon dioxide detector can accurately monitor CO2 concentration, air quality, environmental humidity, and temperature in...
  • EXQUISITE APPEARANCE:This co2 monitor is simple in design, light in weight, easy to carry, 3.9-inch LED display, and is elegant. The simple design is...
  • CALIBRATION AVAIABLE: NDIR CO2 sensor supports easy calibration. Long press the AB button on the back for 200 seconds, the product will complete the...
  • DIFFERENT USAGE SCENARIOS: ​The portable smart carbon dioxide detector can help us detect the carbon dioxide content in the living room, kitchen,...
  • WHAT DO YOU GET:PTH-5 CO2 detector*1 ;English user manual*1; USB data cable* 1. If you have any problems with the goods you received, please contact...
Bestseller No. 3
Gravity: CCS811 Air Quality Sensor for Arduino | Low Power, Fast Warm-up | Suitable for Air...
  • Gravity: CCS811 Air Quality Sensor can measure the eCO2 (equivalent CO2) and TVOC (Total Volatile Organic Compounds) density. It can be widely used...
  • This CCS811 air quality sensor uses AMS's unique micro-hot plate technology. Compared to conventional gas sensors, the heating wire is lower power...
  • Internally integrated ADCs and MCUs allow data to be collected, calculated, and returned via IIC. The CCS811 supports a concentration alarm, which is...
  • The CCS811 air quality sensor supports multiple modes, such as detect in every second, in every 10s, in every one minute, in every 250ms and sleep...
  • NOTE: The chip has stretched the clock in IIC. So, it is not compatible with some controllers, such as Raspberry Pi.
Bestseller No. 4
Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Grow Room and CO2 Generator,...
  • 【Double Outlets】Pls plug CO₂ regulator or generator into WORK1, exhaust fan into WORK2.
  • 【Programmable】Controls the CO2(ppm) within the desired range and supports calibration and alarms
  • 【Plug-n-play】The CO2 controller will turn on/off the device when reaches the desired CO2(ppm) level.
  • 【Digital Display】Both the measured CO2 and the desired CO2 are (ppm)displayed on the CO2 Controller
  • 【Reliable】CE&FCC certificated. S01 Sensor is suitable for home growing and HVAC Equipment.
Bestseller No. 5
Airthings 2930 Wave Plus - Radon & Air Quality Monitor (CO2, VOC, Humidity, Temp, Pressure) 20 x 30...
  • RELIABLE RADON RESULTS: As radon levels fluctuate daily, continuous long-term measuring is necessary. Airthings Wave Plus measures radon accurately...
  • CLEAN AIR SENSORS: Radon, Carbon Dioxide (CO2), toxins and chemicals (Total VOCs), humidity, temperature and air pressure sensors allow you to gain...
  • EASY AND CLEAR RESULTS: Connect via Bluetooth to the Airthings App or log in to the Airthings Dashboard online for detailed insights into your air
  • EASY: Simply wave in front of the device to receive a color-coded visual indication of the overall air quality: Green (Good), Yellow (Fair), Red...
  • WHAT YOU GET: Airthings Wave Plus, 2 AA batteries, Quick Start Guide, Airthings Support and optional and free 5-year extended warranty to increase...
Bestseller No. 6
ELEGOO UNO Project Super Starter Kit with Tutorial and UNO R3 Compatible with Arduino IDE
  • Free PDF tutorial(more than 22 lessons) and clear listing in a nice package
  • The most economical kit based on Arduino platform to starting learning electronics for those beginners who are interested.
  • Lcd1602 module with pin header (not need to be soldered by yourself)
  • This is the upgraded starter kits with power supply module, 9V battery with dc
  • High quality kit with UNO board, compatible with Arduino UNO R3, MEGA 2560 R3, NANO.
Bestseller No. 7
ACDelco GM Original Equipment 213-928 Multi-Purpose Temperature Sensor
  • Helps keep engine operating at proper temperature
  • Sends accurate temperature readings to the gauge
  • GM recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
SaleBestseller No. 8
Nilight - 50004R 120 Pcs/60 Pairs Quick Splice Wire Terminals T-Tap Self-stripping with Nylon Fully...
  • Self-Stripping electrical tap connectors - Nilight self-stripping electrical t-tap connectors makes tapping into an existing wire a quick and easy job
  • Versatile kit - 60 piece T-Tap Wire Connectors plus 60 piece; Male Quick Disconnects will last for numerous wiring projects. Marine, automotive,...
  • Thick tinned copper contacts - Thicker tinned copper contacts provide maximum conductivity and prevents the wire from shorting out efficiently
  • Quality t-tap connector housing - Quick splice T-Tap connectors will securely lock on the wire. Plastic housing will not open after it has been...
  • Perfectly fitting male quick disconnects - Nylon male disconnects have been designed to lock tightly on the T-Tap connectors to prevent sliding out
Bestseller No. 9
KOOKYE 16 in 1 Smart Home Sensor Modules Kit for Arduino Raspberry Pi DIY Professional
  • SMART HOME LEARNING KIT--This kit combines the most common electronic components of smart home projects,developed specially for those beginners who...
  • THE PROFESSIONAL SMART HOME KIT--This has 16 sensors modules and delicately selected sensors to detect temperature, humidity, sound, light, infrared,...
  • THE MOST COMPLETE SMART HOME KIT--This universal kit are compatible for Arduino UNO R3 / Mega2560 / Mega328 /Nano / Raspberry Pi, it could DIY 16...
  • HIGH QUALITY GUARANTEE--We eliminate many old-fashioned sensors which have low reliability and duplicate function as other sensor in the kit, the...
Bestseller No. 10
CO2 Carbon Dioxide Air Quality Monitor, Pollution & Ventilation Meter, Tester; Detect & Test Indoor...
  • CO2 PPM READINGS ON A LED DISPLAY – Assess the quality of your air and help keep air fresh in any indoor space with this CO2 meter with a highly...
  • SAFETY FOR EVERYONE – Monitor public and private spaces for excess CO2 levels caused by large groups of people in an enclosed area exhaling CO2. CO2...
  • MULTI-MEASUREMENTS – In addition, check temperature and humidity levels while reading accompanying CO2 levels.
  • HEALTHY AIR & HEALTHY PEOPLE – Monitor and maintain adequate ventilation levels by opening windows to draw outdoor air and reduce CO2 levels to...
  • ORIGINAL DESIGN & USA BASED SUPPORT – We have Midwest-based technical staff including a chemist to answer any questions you have. Also included will...
SaleBestseller No. 11
ELEGOO Upgraded 37 in 1 Sensor Modules Kit with Tutorial Compatible with Arduino IDE UNO R3 MEGA...
  • Updated from the old version (others): Received great ideas from our customers and adopted in this upgraded kit.
  • Removed useless modules like light cup and mercury module, heartbeat sensor, two of the hall sensors, one of the dual-color sensor. Add useful modules...
  • Upgraded tutorial only for R3, MEGA R3, NANO in CD, listing paper, resistors pack only from Elegoo Team. There are tutorials in the CD that comes...
  • 100% compatible with Arduino official IDE, Raspberry Pi and STM32.
  • Note: To use Elegoo starter kits requires basic electronic knowledge. If the user has no experience, it would be better to have someone lead and teach...
SaleBestseller No. 12
Autopilot APC8200 CO2 w/15' Remote Sensor Monitor & Controller, Blue
  • Fully customizable ppm deadband and CO2 set point allow flexibility in programming
  • Trend chart records CO2 levels per minute, hour, day and week for accurate analysis of CO2 distribution
  • Adjustable trend chart zoom levels let you trace your ppm levels
  • Remote CO2 sensor probe w/Photocell & 15' data cable lets you take readings from proper grow room locations
  • 2-channel low drift ndir sensor precisely reads CO2 ppm levels
Bestseller No. 13
Aeotec Multisensor 6, Z-Wave Plus 6-in1 motion, temperature, humidity, light, UV, vibration sensor
  • 6-in-1 Z-Wave Plus MultiSensor: motion, humidity, temperature, light lux, UV, vibration sensor.
  • 2 year battery life
  • Super-small at 1.8 inches. Can be installed in corner, in-wall, on shelf or in downlight.
  • Works with certified Z-Wave gateways and tested with Fibaro, Indigo 7, openHAB, SmartThings, Vera.
  • Z-Wave Plus certified. Certification number: ZC10-15070011
Bestseller No. 14
CO2 Meter Indoor Air Quality Monitor Carbon Dioxide Detector Alarm Humidity Temperature Meter NDIR...
  • Multifunction Air Quality Meters:This is temperature and humidity detection,intelligent alarm system,Gas identification algorithm,Multiple...
  • Sensitive CO2 Sensor:CO2 Sensor uses a dual channel non-dispersive infrared (NDIR) sensor to provide fast,accurate and,precise readings.Real-time...
  • Alarm alert:Abnormal CO2 warning alarm.2 alert modes.Different color of indicator light and beeping alarm length at different air quality...
  • Portable easy operate:Just press the power switch button,This air monitor is designed with LED digital display,Adjustable screen brightness,Equipped...
  • Tabletop or Wall Mount Use:Two use way,Wall-mounted or Tabletop design.You can set it on a stand or mount it on the wall with a mounting hole on the...
SaleBestseller No. 15
Denso12594452 Oxygen Sensor
  • Fit type: Vehicle Specific
SaleBestseller No. 16
Qingping Air Monitor Lite, Apple HomeKit Compatible Wi-Fi Indoor Air Quality Meter Detects Home CO2,...
  • 【A 5-in-1 Multifunction Air Monitor】Qingping Air Monitor Lite tests 5 major factors of the indoor air quality: PM2.5 (the result of secondhand...
  • 【High Accuracy and Fast Responding】Inside the air monitor, there are reliable, fast responding and stable sensors from top level sensor...
  • 【Works with Apple HomeKit and Qingping+ app】As this is a Wi-Fi device (2.4GHz Wi-Fi ONLY), you can check data remotely/export historical data on...
  • 【Clear OLED Display and Sensitive Touch Bar】Pixel style UI design shows on a clear OLED screen, enables bigger visible angle and more fun. Through...
  • 【Rechargeable Lithium Battery with 7-hour Battery Life】The built-in 2000mAh Lithium battery is with up to 7 hours battery life. We recommend...
Bestseller No. 17
Elitech WJL-6000 Freon Leak Detector Halogen Gas Tester HVAC Refrigerant AC Sniffer R22 R410A R134A
  • Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
  • Response within 3 seconds; Warm up in 6 seconds.
  • 7 Adjustable Sensitivity; Maximum sensitivity is 0.21oz/yr.
  • Audible and visual gas leakage indicators and dual battery indicator.
  • A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone.
SaleBestseller No. 18
SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Home, Office or School (CO2, Temperature,...
  • The perfect companion for indoor environments, allowing you to monitor CO2 levels, temperature, relative humidity, and atmospheric pressure in...
  • Easy for anyone to use – the color coding and the optional buzzer warns you when the CO2 concentration gets too high
  • Power-efficient e-ink display ensures super long battery life for this wireless device (up to 4 years)
  • Smartphone app for viewing and analyzing historical data up to 14 days history (supports iPhone and iPad with iOS 12 or later, Android devices with...
  • Uses nondispersive infrared sensor (NDIR) technology for most precise and reliable CO2 measurements

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After hours of searching and using all the models on the market, we have found the best Mg811 Co2 Sensor Circuit for 2023. See our ranking below!

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FAQ:

Q: What is mg811 carbon dioxide CO2 sensor module?

A: MG811 Carbon Dioxide CO2 Sensor Module is a sensor that is highly sensitive to carbon dioxide (CO2).It could be used in air quality control, ferment process, in-door air monitoring application. The output voltage of the module falls as the concentration o

Q: What can the mg-811 sensor be used for?

A: There is an onboard signal conditioning circuit for amplifying output signal and an onboard heating circuit for heating the sensor. The MG-811 is highly sensitive to CO2 and less sensitive to alcohol and CO. It could be used in air quality control, ferment process, in-door air monitoring application.

Q: How does the mg-811 detect alcohol and CO2?

A: There is an onboard signal conditioning circuit for amplifying output signal and an onboard heating circuit for heating the sensor. The MG-811 is highly sensitive to CO2 and less sensitive to alcohol and CO.

Q: What is the input resistance of mg-811?

A: According to the datasheet of MG-811, this sensor require an input impedance of 100-1000Gohm, the LMC662 has an input resistance above 1Tohm, which meets this requirement. The typical input offset voltage of this OPA is about 3mV, which is insignificant for this application.