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MQ-4 Gas Methane Sensor Module MQ4 for arduino Diy Kit

$1.19 $1.13

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Guarantees: On-time Delivery 60 days

Detailed specifications

Condition

New

Brand Name

HESAI

Type

Voltage Regulator

Description

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   We will send the latest version of product, the upgraded function. It may has different shape or color. If you can’t agree, pls don’t buy. Pls choose available tracking info shipping method, never ask a tracking number if your shipping method is not available.

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   Sensitive material MQ-4 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When there is the environment in which the combustible gas sensor , conductivity sensor with increasing concentration of combustible gases in air increases . Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-4 gas sensor of high sensitivity for methane , propane , butane and has a good sensitivity. This sensor can detect a variety of combustible gases, especially natural gas , is a low-cost sensor for a variety of applications .

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   Input voltage : DC5V Power consumption ( current ): 150mA

   DO output : TTL digital 0 and 1 ( 0.1 and 5V)

   AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V

   Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .

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   Suitable for home or factory methane gas , natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm;

   Module Features :

   1 , using high-quality dual-panel design, with power indicator and TTL signal output instructions;

   2 , the switching signal having a DO (TTL) output and analog output AO ;

   3, TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )

   4 , the higher the voltage , the concentration of the analog output voltage is higher.

   5 , for methane, natural gas has a good detection sensitivity.

   6 , there are four screw holes for easy positioning ;

   7 Product dimensions : 32 (L) * 20 (W) * 22 (H)

   8 , has a long life and reliable stability

   9 , rapid response and recovery characteristics

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   1pcs MQ4 sensor moduleaeProduct.getSubject()aeProduct.getSubject()aeProduct.getSubject()

 

 

 

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   If need more parts Pls click aeProduct.getSubject() and submit the order.If you need more quantity,Pls contact us. If you mind the price,If some parts can not find out in my store,Pls contact us,we still have many parts don’t published.

   We will send the latest version of product, the upgraded function. It may has different shape or color. If you can’t agree, pls don’t buy.

   Please don’t open dispute and leave any bad feedback, if you have any question, feel free to contact us,we will give you satisfactory answer. Hope you understand us, thank you in advance.

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   When you place an order, please choose a shipping method and pay for the order including the shipping fee. We will send the items within 5 days once your payment is completed.

   We do not uarantee delivery time on all international shipments due to differences in customs clearing times in individual countries, which may affect how quickly your product is inspected. Please note that buyers are responsible for all additional customs fees, brokerage fees, duties, and taxes for importation into your country. These additional fees may be collected at time of delivery. We will not refund shipping charges for refused shipments.

   The shipping cost does not include any import taxes, and buyers are responsible for customs duties.

   All order will ship out in 1-5 buiness after payment verify .Pls wait in patient.

   China Post mail is not fast , Usally need 15-60days arriived.If in urgent .Pls choose DHL/ Fedex/EMS.We can write low value for cutomer if in need!

   China Post Ordinary Small Packet Plus just can track to the domestic of our country,but it not effect your receiving.

    If you want your products and don’t want to waste your time, pls choose China Post Registered Air Mail. If you choose China Post Ordinary Small Packet Plus and the package is lost. We will prove you we send the package and we only can refound 50%. This is your choose, We all have to take risks. If you can’t agree, pls don’t buy.

   China Post Ordinary Small Packet Plus and China Post Registered Air Mail all can track in www.17track.net/en/aeProduct.getSubject()

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   We do our best to serve our customers the best that we can.

   We will refund you if you return the items within 15 days of your receipt of the items for any reason. However, the buyer should make sure that the items returned are in their original conditions. If the items are damaged or lost when they are returned, the buyer will be responsible for such damage or loss, and we will not give the buyer a full refund. The buyer should try to file a claim with the logistic company to recover the cost of damage or loss.

   The buyer will be responsible for the shipping fees to return the items.

   We will refund you if you return the items within 15 days of your receipt of the items for any reason. However, the buyer should make sure that the items returned are in their original conditions. If the items are damaged or lost when they are returned, the buyer will be responsible for such damage or loss, and we will not give the buyer a full refund. The buyer should try to file a claim with the logistic company to recover the cost of damage or loss.

   The buyer will be responsible for the shipping fees to return the items.

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   We offer the 1-month free replacement.Buyers may request for a replacement within 15 days from your receipt of the product. The buyer should return the product in the original conditions to us and should bear the shipping costs for return.

   We also provide 12-month free maintenance. The buyer should return the product in the original conditions to us and should bear the shipping costs for return. If any part is required to be replaced, the buyer should also pay for the costs of the parts to be replaced.

   Before returning the items, please confirm the return address and the logistics method with us. After you give the items to the logistic company, please send us the tracking number. As soon as we receive the items, we will repair or exchange them ASAP.

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   Your satisfaction and positive feedback is very important to us. Please leave positive feedback and 5 stars if you are satisfied with our items and services.

   If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer service.

 

 

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