This item will be shipped from our Australia warehouse.
We will carefully check every item before shipment.The quality is guaranteed!
Introduce: MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (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-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.
Module description: Using high-quality dual-panel design, with power indicator and TTL signal output instructions ; The switching signal having a DO (TTL) output and analog output AO ; TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ) Analog output voltage with the higher concentration of higher voltage. A gas, natural gas, city gas, smoke better sensitivity. There are four screw holes for easy positioning ; Has a long life and reliable stability Rapid response and recovery characteristics
Specification: Product dimensions: 32 x 20 x 15 (L x W x H) Chip: LM393, ZYMQ-2 gas sensors Working voltage: DC 5V Detection of gas: combustible gases, fumes Detectable concentration: 300-10000ppm (flammable gas)
Electrical properties: Input voltage: DC5V Power consumption (current): 150mA DO output: TTL digital 0 and 1 (0.1 and 5V) AO output: 0.1 - 0.3V (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 1, VCC: positive power supply (5V) 2, GND: power supply is negative 3, DO: TTL switching signal output 4, AO: analog signal output
Module Applications: Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.
Package include: 1 x MQ-2 module
Allthe Terms:
PAYMENT:
Only through PayPal
Payment is to be completed within 14 days of the end of the auction.
Please contact us if you can't make the payment promptly.
Otherwise, we will reserve the right to relist the item and the unpaid item report will be made correspondingly.
SHIPPING:
Thanks for your bid.
Rate the seller on the time it took to mail the item, not the time it took you to receive the item!! See the ebay policy here
Delivery time:
Your item will be dispatched within 24 hours (Mon-Fri);
Please refer to the "Item Location" and get to know which warehouse we sent.
Here are our warehouse info.
Eg, if item located in HongKong, we will ship the item from HongKong.
Item Location: HongKong - We will ship the order from HongKong by air mail, it takes 7-21 days.
Item Location: Australia - We ship the item from our Australia warehouse by Aus Post. Delivery typically takes 3-6 working days after dispatch;
We ship to eBay address. Please make sure your address in ebay is matched with your shipping address before you pay.
Please indicate your personal requirement, such as colors, packages, value of
declaration etc, at paypal's message when you pay to us.
International Buyers Please Note:
Import duties, taxes and charges are not included in the item price or
shipping charges. These charges are the buyer responsibility.
Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
We will NOT be responsible for any delay during delivery including but not
limited to customs postage checking, strike, force majeure etc.
As a buyer, it is your duty to pay the tax when you make a order from abroad.
Our price does not include taxes, VAT, or other hidden charges.
GURANTEE:
Return & Refund
Refund or replacement request is available only the requests within 1
week after parcel received & returning the item as the same
condition as received.
Please contact us to request a return
authorization. Your name, auction number, and reason for return should
be included in the email. All items returned must contain all original
packaging materials.
Please repack the item carefully.
Items returned will be tested and a new replacement will be shipped to
the buyer immediately when found defective. In the event that a suitable
replacement is not available then a refund will be issued. Shipping,
handling and insurance fees are non refundable.
If the item is found non-defective,
the item will be sent back to the buyer at buyer's expense. Items
returned without RMA number will be refused and returned to the sender.
Buyer is responsible for All Return Postage and Shipping Charges. Buyer
is responsible for additional shipping costs for items that are returned
refused and/or undeliverable. We do not accept any returns without an
authorization number on the box or label it is being returned in.
About ME:
Our working time:
Hong Kong time :Monday to Friday 9:30 am to 6:30 pm.
We do not work on holidays in Hong Kong.
if you send email to us, it will be resumed within 1 working days .
If you are not satisfied with the
product or service ,please contact us and don't give us negative or
natural feedback,We must give you a satisfactory solution.
Feedback & DSRs (Detailed Seller Ratings). We depend on our eBay reputation and customer satisfaction to
succeed.Therefore, Your feedback and DSRs are extremely importantto us
as better DSR scores affect our search placement on eBay.
We would like to earn your good feedback and 5 star DSR rating. Your
action will help us offer our milk and bread . If we have not given you
reason enough for 5-star grades on each DSR then please let us know how
we can earn your 5-star rating before submitting yourscores!
Contact US:
Contact us through ebay message in English
Introduce: MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (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-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.
Module description: Using high-quality dual-panel design, with power indicator and TTL signal output instructions ; The switching signal having a DO (TTL) output and analog output AO ; TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ) Analog output voltage with the higher concentration of higher voltage. A gas, natural gas, city gas, smoke better sensitivity. There are four screw holes for easy positioning ; Has a long life and reliable stability Rapid response and recovery characteristics
Specification: Product dimensions: 32 x 20 x 15 (L x W x H) Chip: LM393, ZYMQ-2 gas sensors Working voltage: DC 5V Detection of gas: combustible gases, fumes Detectable concentration: 300-10000ppm (flammable gas)
Electrical properties: Input voltage: DC5V Power consumption (current): 150mA DO output: TTL digital 0 and 1 (0.1 and 5V) AO output: 0.1 - 0.3V (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 1, VCC: positive power supply (5V) 2, GND: power supply is negative 3, DO: TTL switching signal output 4, AO: analog signal output
Module Applications: Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.
Package include: 1 x MQ-2 module
PAYMENT
Only through PayPal
Payment is to be completed within 14 days of the end of the auction.
Please contact us if you can't make the payment promptly.
Otherwise, we will reserve the right to relist the item and the unpaid item report will be made correspondingly.
SHIPPING
Thanks for your bid.
Rate the seller on the time it took to mail the item, not the time it took you to receive the item!! See the ebay policy here
Delivery time:
Your item will be dispatched within 24 hours (Mon-Fri);
Please refer to the "Item Location" and get to know which warehouse we sent.
Here are our warehouse info.
Eg, if item located in HongKong, we will ship the item from HongKong.
Item Location: HongKong - We will ship the order from HongKong by air mail, it takes 7-21 days.
Item Location: Australia - We ship the item from our Australia warehouse by Aus Post. Delivery typically takes 3-6 working days after dispatch;
We ship to eBay address. Please make sure your address in ebay is matched with your shipping address before you pay.
Please indicate your personal requirement, such as colors, packages, value of
declaration etc, at paypal's message when you pay to us.
International Buyers Please Note:
Import duties, taxes and charges are not included in the item price or
shipping charges. These charges are the buyer responsibility.
Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
We will NOT be responsible for any delay during delivery including but not
limited to customs postage checking, strike, force majeure etc.
As a buyer, it is your duty to pay the tax when you make a order from abroad.
Our price does not include taxes, VAT, or other hidden charges.
Terms of Sale
Return & Refund
Refund or replacement request is available only the requests within 1
week after parcel received & returning the item as the same
condition as received.
Please contact us to request a return
authorization. Your name, auction number, and reason for return should
be included in the email. All items returned must contain all original
packaging materials.
Please repack the item carefully.
Items returned will be tested and a new replacement will be shipped to
the buyer immediately when found defective. In the event that a suitable
replacement is not available then a refund will be issued. Shipping,
handling and insurance fees are non refundable.
If the item is found non-defective,
the item will be sent back to the buyer at buyer's expense. Items
returned without RMA number will be refused and returned to the sender.
Buyer is responsible for All Return Postage and Shipping Charges. Buyer
is responsible for additional shipping costs for items that are returned
refused and/or undeliverable. We do not accept any returns without an
authorization number on the box or label it is being returned in.
ABOUT US
Our working time:
Hong Kong time :Monday to Friday 9:30 am to 6:30 pm.
We do not work on holidays in Hong Kong.
if you send email to us, it will be resumed within 1 working days .
If you are not satisfied with the
product or service ,please contact us and don't give us negative or
natural feedback,We must give you a satisfactory solution.
Feedback & DSRs (Detailed Seller Ratings). We depend on our eBay reputation and customer satisfaction to
succeed.Therefore, Your feedback and DSRs are extremely importantto us
as better DSR scores affect our search placement on eBay.
We would like to earn your good feedback and 5 star DSR rating. Your
action will help us offer our milk and bread . If we have not given you
reason enough for 5-star grades on each DSR then please let us know how
we can earn your 5-star rating before submitting yourscores!
