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Double-sided 150mA Alcohol Sensor Module Ethanol Gas Electronics
Double-sided 150mA Alcohol Sensor Module Ethanol Gas Electronics
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Discover the Double-sided 150mA Alcohol Sensor Module Ethanol Gas Electronics — a standout decor pick featuring adjustable design for dependable, everyday performance.
Specifications
DIY Supplies: Electrical
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2pcs MQ-3 Alcohol Gas Sensor Module Ethanol Detector Breath Gas Detection Board
Specification:
1. Using double-sided circuit board design, with power indicator and TTL signal output indicator.
2. With DO switching signal (TTL) output and analog output AO.
3. TTL output valid signal is low level. (When the output is low level, the signal light is on, it can be directly connected to the MCU or relay module)
4. Analog output voltage, the higher the voltage, the higher the concentration.
5. High sensitivity for the detection of alcohol gas.
6. Rapid response and recovery characteristics.
7. There are four screw holes for easy positioning
Detailed Test Parameters:
Model: MQ-3
Detecting gas: alcohol vapor
Detection concentration: 0.04-4mg/L alcohol
Standard circuit condition: Loop voltage VC ≤24DC
Heating voltage :VH 5.0±0.2V AC/DC
Load resistance: RL adjustable
Gas sensor characteristics under standard test condition: Heating resistor 31Ω±3Ω
Heating power consumption: ≤90mW
Sensitive surface resistance: 2KΩ-20KΩ (in 0.4mg/L alcohol)
Sensitivity: Rs (in air) / Rs (0.4mg / L alcohol) ≥ 5
Concentration slope: ≤0.6 (R300ppm/R100ppm alcohol)
Standard test conditions: 20℃±2℃; 65%±5% RH
Standard test circuit: 5.0V ± 0.1V
Warm-up time: ≥48 hours
Electrical Properties:
Input voltage: DC5V
Power consumption (current ): 150mA
DO output: TTL digital 0 and 1 ( 0.1 and 3.3V)
AO output: 0.1-0 .3V, the highest concentration voltage is about 4V
Note: After the sensor is powered, needs to warm up around 20S, measured data was stable , heat sensor is a normal , because the internal heating wire , if hot is not normal.
Wiring:
1. VCC: connected to the positive pole of the power supply
2. GND: connected to the negative power supply
3. DO: TTL switching signal output
4. AO: analog signal output
Package list:
2 x Alcohol Gas Sensor
1) We accept Alipay, West Union, TT. All major credit cards are accepted through secure payment processor ESCROW.
2) Payment must be made within 3 days of order.
3) If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days.
About shipping
1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference .
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within the period, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.
8. We seller are not in charge of import duty, buyer is responsible for that. Any dispute caused by this is unreasonable.
9. BR buyer please provide the cpf or cnpj, it will be better for you to get it more quickly. thanks
Return and Refund
1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS!And Pay attention please!The Shipping cost is bear by buyer themselves.
2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#.
3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from . OR, you may choose to have a replacement.
4. We will bear all the shipping cost if the product(s) is (are) not as advertised.
About feedback
We maintain high standards of excellence and strive for customer satisfaction! Feedback is very important We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
It is impossible to address issues if we do not know about them!
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Frequently Asked Questions
Q: What is the Double-sided 150mA Alcohol Sensor Module Ethanol Gas?
A: The Double-sided 150mA Alcohol Sensor Module Ethanol Gas is a quality decor pick. Using double-sided circuit board design, with power indicator and TTL signal output indicator.
Q: How do I use the Double-sided 150mA Alcohol Sensor Module Ethanol Gas?
A: The Double-sided 150mA Alcohol Sensor Module Ethanol Gas is ready to use right out of the box and makes an easy addition to your decor lineup.
Q: Why choose the Double-sided 150mA Alcohol Sensor Module Ethanol Gas?
A: The Double-sided 150mA Alcohol Sensor Module Ethanol Gas stands out in our decor range — With DO switching signal (TTL) output and analog output AO.
