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Mg811/mg-811 Co2/carbon Dioxide Sensor Module For Arduino And Other Mcus For Sale
This sensor module has an MG-811 onboard as the sensor component.
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.
The output voltage of the module falls as the concentration of the CO2 increases.
Click HERE for product datasheet.
Analog and digital output
Onboard signal conditioning circuit
Onboard heating circuit
Sensor jack eliminates soldering the sensor and allows plug-and-play
4-pin interlock connectors onboard
4-pin interlock cables included in the package
In the Package
A fully tested MG-811 CO2 sensor module
A 4-pin 30cm cable (with interlock connector on one end, free on the other)
Sample Code for Arduino
We accept PayPal ONLY.
Your goods will be shipped within 3 days after cleared PayPal payment.
If the total amount is less than $25, your goods will be shipped via airmails (i.e. HongKong Airmail or China Post Airmail). If you would like to use trackable airmail, please leave a message when making the payment via PayPal. We will send you another PayPal invoice of $2 for the extra trackable airmail expense.
If the total amount is more than $25, your goods will be shipped via trackable airmail (i.e. HongKong Registered Airmail or China Post Registered Airmail).
Expedited shipping services (e.g. DHL, FedEx, UPS) are available. Please contact us via messages for pricing.
Your goods will ONLY be shipped to your PayPal address. Before you place an order/offer, please edit/add your PayPal address if it is not correct.
If by any chance that your goods is held by the Customs, it is the buyer's responsibility to clear the Customs. The Customs office may be far away from your location. Please take that into consideration.
By default, we declare the real value to the Customs. If you have any requirement on declaration, please leave a message when making the payment via PayPal.
Shipping time statistics via HongKong Airmail
more than 30 days
Full refund or Reshipping
Check the note below
 If the item(s) is not received within 30 days, the buyer could choose between receiving full refund or reshipment.
 Brazilian and Russian buyers might experience longer delay in some case. The buyer could choose between receiving full refund and reshipment if the item(s) is not received within 45 days.
Return and Warranty
100% full money back for DOA.
100% full money back if your goods is lost.
7 days full money back. The buyer has to send the goods back and pay for the shipment.
We are not good at Photoshop. But we do have a camera.
We are the designer of this product. We assemble, test and sell this product on our own. We guarantee that all technical questions will be answered by qualified engineers.
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Mg811/mg-811 Co2/carbon Dioxide Sensor Module For Arduino And Other Mcus: $54