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Waveshare MQ-3 Gas Sensor
₹609.29 (Including tax)
- Power: 2.5V ~ 5.0V
- Dimension: 40.0mm * 21.0mm
- Mounting holes size: 2.0mm
- Boost Converter Chip: PT1301
Discount per Bulk Quantity
| Quantity | Discount | Price |
|---|---|---|
| 5 - 10 | 5% | ₹578.83 (Including tax) |
| 11 - 20 | 8% | ₹560.54 (Including tax) |
| 21 - 40 | 10% | ₹548.36 (Including tax) |
| 41 - 100 | 12% | ₹536.17 (Including tax) |
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Description
The sensor determines the concentration of alcohol in the air, the result can be obtained measuring the voltage on the analog output. The system is powered with the voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with mostof the commissioning modules including Raspberry Pi and Arduino.
The digital output D0
With the help of placed on the reverse side of the board, potentiometer, set is the threshold, exceeding of which, causes the output D0 changing from a high to a low status. The pin D0 can be linked directly with a microcontroller or commissioning set, including Arduino, or for example, a module with a buzzer, which will signal a too low or too high level of alcohol in the air.
Analog output A0
The sensor has an analog output A0, which must be connected to the pin of the converter A/D (analog input in Arduino). This will allow you to measure the proportional voltage signal and more accurately determine the level of alcohol.
Operating principle:
MQ-3 gas sensor applies SnO2 which has a lower conductivity in the clear air as a gas-sensing material. In an atmosphere where there may be alcohol gas, the conductivity of the gas sensor raises along with the concentration of the alcohol gas increases.
Features:Â
- Sensitive for alcohol, ethanol
- Output voltage boosts along with the concentration of the measured gases increases
- Fast response and recovery
- Adjustable sensitivity
- Signal output indicator
Specification:
- Power supply: from 2.5 V to 5 V
- Analog and digital output
- Pins: goldpin connectors, 2.54 mm pitch
- Board sizes: 40 x 21 mm
- It has mounting holes with the diameter: 2 mm
Package Includes:
1 x MQ-3 Gas Sensor
1 x 4-pin custom connector jumper wire
Additional information
| Voltage(V) |
2.5 V to 5 V |
|---|---|
| Output Pin |
Analog and digital |
| Pin |
Gold pin connectors ,2.54 mm pitch |
| Board size |
40 x 21 mm |
| Mounting Holes Diameter (mm) |
2 mm |
| Boost Converter Chip |
PT1301 |
| Interface |
Analog output ,Digital Output ,Power ground ,VCC Positive power supply (2.5V-5.0V) |
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Shipping & Delivery
Shipping and Delivery Policy
1. Shipping Process:
- Orders are processed within 1-2 business days after payment confirmation.
- Delivery time varies based on location and selected shipping method, typically ranging between 3-7 business days.
- We partner with trusted courier services to ensure timely and safe delivery.
2. Shipping Charges:
- Shipping charges are calculated at checkout based on the delivery location and package weight.
- Free shipping may be available for orders above a specified amount, as mentioned on our website.
3. Order Tracking:
- Once your order is shipped, you will receive a tracking ID via email or SMS to monitor the shipment status.
4. Delivery Address:
- Please provide a complete and accurate delivery address to avoid delays.
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- If a package is delayed, lost, or damaged during transit, please contact our support team immediately.
- Claims for lost or damaged items must be reported within 48 hours of delivery.
6. No Return Policy for Opened/Soldered Products:
- We do not accept returns for products that have been opened, used, or soldered.
- Ensure you verify product compatibility before purchase, as returns will only be accepted for unopened and unused items in their original packaging.
7. Refund Policy:
- Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
- No refunds or replacements for products that have been tampered with, soldered, or physically damaged by the customer.
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