DFRobot Gravity Analog CH4 Gas Sensor (MQ4) For Arduino

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SKU: rz24310663 Category: Gas and Dust Sensor

Description

The MQ4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is suitable for detecting CH4,Natural gas, LNG, avoid exposure to alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer

Features:

High sensitivity to CH4，Natural gas.
Small sensitivity to alcohol, smoke.
Fast response
Stable and long life
Simple drive circuit

Specifications:

Power supply needs: 5V
Interface type: Analog
Pin Definition: 1-Output 2-VCC 3-GND
High sensitivity to CH4£¬Natural gas
Small sensitivity to alcohol, smoke
Fast response
Stable and long life
Simple drive circuit
Size: 40x20mm

Packages Includes:

1 x DFRobot Gravity Analog CH4 Gas Sensor (MQ4) For Arduino

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Shipping & Delivery

Shipping and Delivery Policy

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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.
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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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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)

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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

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SKU: rz2436162

Model No.	TGS2610-C00
Heater Current	56±5mA
Heater Resistance	approx 59Ω at room temp.
Heater Voltage	5.0±0.2V DC
Load Resistance	variable 0.45kΩ min
Sensing Principle	MOS type
Circuit Voltage	5.0±0.2V DC
Sensor Resistance	1.0~10.0kΩ in 1800ppm iso-butane
Standard Package	TO-5 metal can
Target Gases	Butane , LP gas
Test Gas Conditions	iso-butane in air at 20±2˚C , 65±5%RH
Heater power consumption	280mW VH = 5.0V DC

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SKU: rz2436177

Model No.	TGS2611-C00
Sensing Principle	MOS type
Standard Package	TO-5 metal can
Target Gases	Methane , Natural Gas
Heater Voltage	5.0±0.2V DC
Circuit Voltage	5.0±0.2V DC
Load Resistance	variable 0.45kΩ min.
Heater Resistance	approx 59Ω at room temp.
Heater Current	56±5mA
Heater power consumption	280mW±25mW
Sensor Resistance	0.68~6.8kΩ in 5000ppm methane
Test Gas Conditions	Methane in air at 20±2˚C , 65±5%RH

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SKU: rz2436185

Model No.	TGS6812-D00
Heater Current	175mA (typical)
Heater power consumption	525mW (typical)
Target Gases	Hydrogen , methane , iso-butane
Test Gas Conditions	Hydrogen/methane/iso-butane in air at 20±2˚C , 65±5%RH
Zero offset	-15 ~ +55mV

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