DFRobot Gravity Analog CO/Combustible Gas Sensor (MQ9) For Arduino

13 People watching this product now!

SKU: rz24310501 Category: Gas and Dust Sensor

Description

This is an Arduino CO/Combustible Gas sensor. It uses MQ-9 to detect Carbon Monoxide. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for a variety of applications. The core sensing material of the MQ-9 gas sensor is SnO2, which has lower conductivity in clean air. It makes detection by cycling high and low temperatures and detects CO when low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When temperature rises (heated by 5.0V), it detects Methane, Propane, combustible gas, etc, and cleans the other gases adsorbed under low temperature.

The sensitivity can be adjusted by the potentiometer. The output is proportional to the density of a gas. You can use analog reading to read the data from this sensor.

Applications:

Domestic gas leakage detector
Industrial gas detector
Portable gas detector

Features:

Good sensitivity to CO/Combustible gas
High sensitivity to Methane, Propane and CO
Long life and low cost
Simple drive circuit

Specifications:

Power supply needs: 5V
Interface type: Analog
Loop Voltage: ≤10V DC
Heater Resistance: 31Ω±3Ω（Room Tem.）
Heater consumption: ≤350mW
Sensing Resistance: 2KΩ-20KΩ(in 100ppm CO )
Sensitivity: Rs(in air)/Rs(100ppm CO)≥5
Sensor Type: Semiconductor
Concentration:10-1000ppm CO ,00-10000ppm combustible gas
Good sensitivity to CO/Combustible gas
Slope: α ≤0.6(R300ppm/R100ppm CO)
Tem. Humidity: 20℃±2℃; 65%±5%RH
High sensitivity to Methane, Propane and CO
Size: 36.4×26.6mm(1.43″x1.05″)

Package Includes:

1 x DFRobot Gravity Analog CO/Combustible Gas Sensor (MQ9) For Arduino

Reviews (0)

Rated 0 out of 5

0 reviews

Rated 5 out of 5

Rated 4 out of 5

Rated 3 out of 5

Rated 2 out of 5

Rated 1 out of 5

Reviews

Clear filters

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

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.
We are not responsible for delivery failures due to incorrect or incomplete address details provided by the customer.

5. Delivery Issues:

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.

AMS2106 Digital Display Gas Mass Flow Meter 200Lmin 2

AMS2106 Digital Display Gas Mass Flow Meter -200L/min

Out of stock

₹10,149.17 – ₹11,533.15 (Including tax)

SKU: rz2436537

Measure Range	0～200L/min(standard)Customizable with different ranges
Accuracy	±3%FS
Response Time ( μS)	≤2000
Operating Power	Battery or external 9～24V DC
Output	RS485

DFRobot Air Quality Monitor (PM 2.5, Formaldehyde, Temperature & Humidity Sensor)

Out of stock

₹5,491.95 – ₹6,240.85 (Including tax)

SKU: rz2436117

Particle Measurement Range	0.3~1.0μm; 1.0~2.5μm; 2.5~10μm
Particle Counting Efficiency	50%@0.3μm , 98%@>=0.5μm
Resolution of Particle Mass Concentration	1μg/mᶟ
Temperature Measurement Range	0~99℃
Temperature Measurement Resolution	0.1℃
Humidity Measurement Range	0~99%
Humidity Measurement Resolution	0.1%
Humidity Measurement Accuracy	±2%
Single Response Time	＜1s
Comprehensive Response Time	≤10s
DC Supply Voltage	Typ: 5V Min: 4.5V Max: 5.5V
Working Current	≤100mA
Standby Current	≤200mA
Data Interface Level	L＜0.8V , H＞2.7V , maximum level voltage 3.3V
Working Temperature Range	10~50℃
Working Humidity Range	0~99%
Storage Temperature Range	40~80℃

DFRobot Gravity Electrochemical Oxygen Sensor (0-100%Vol) – I2C

Out of stock

₹12,358.37 – ₹14,043.59 (Including tax)

SKU: rz24310068

Detection Gas	Oxygen concentration
Detection range	0~100%
Working Pressure Range	0.5~2.0Bar
Working Voltage	3.3～5.5V DC
Output Signal	I2C , UART (0~3V) , analog voltage
Lifespan	＞2 years (in air)
Working Humidity Range	0-99% RH (non-condensing)
Working Temperature Range (°C)	-20°C ~ +50°C
Product Dimensions	32mm x 27mm/1.26 x 1.06 inch
Response Time ( μS)	＜5S
Mounting Holes Diameter (mm)	inner diameter 3.1mm(0.12 inch)/outer diameter 6mm(0.24 inch)

DFRobot Gravity Industrial Grade Analog ORP Sensor Meter PRO

Out of stock

₹17,015.59 – ₹19,335.89 (Including tax)

SKU: rz2439921

Input signal	0.5V ~ 4.5V
Working Voltage	5V
Measuring Range	-2000mV ~ +2000mV
Output Interface	PH2.0 – 3Pin
Interface	5.08mm/0.20″ Pluggable Connector
Product Dimensions	42mm×32mm/1.65×1.26″

Figaro LPM2610-D09 Butane and Propane Gas Sensor Module

Out of stock

₹1,670.63 – ₹1,898.45 (Including tax)

SKU: rz2436184

Heater voltage	5.0±0.2V DC
Circuit Voltage	5.0±0.2V DC
Heater Current	56±5mA
Minimum impedance between Pin#2,3 and GND	2.5MΩ
Operating conditions	0˚~40˚C , 30~95%RH
Temperature differential between inside and outside detector casing	≤10˚C max. (see NOTE 1)
Test gas conditions	1250±100ppm iso-butane in air at 20˚±2˚C , 65±5%RH
Circuit conditions	VH=5.0±0.05V DC VC=5.0±0.05V DC

Fluorescent oxygen sensor AOX4000

Out of stock

₹4,178.37 – ₹4,748.15 (Including tax)

SKU: rz2436545

Maximum Working Voltage (V)	4.75~5.25
Working Current	Average 7.5mA；Highest 32mA
Oxygen Concentration Range	0~25%
Atmospheric Pressure Range (mbar)	500~1200mbar

Hydrogen sulfide sensor AHS3000

Out of stock

₹1,312.39 – ₹1,491.35 (Including tax)

SKU: rz2436538

Operating Temperature Range (°C)	-40~+55℃
Working Humidity Range	15~90%RH(Non-Condensing）
Measure Range	0~100ppm
Response Time ( μS)	≤30000

Lead-free oxygen sensor AOX3000

Out of stock

₹2,387.13 – ₹2,712.65 (Including tax)