A
Anonymous
Apr 08, 2026
Rating: 4/5
Solid component
Note that this is a sensor module, not a certified alarm. Great for DIY systems.
Description
MQ-5 LPG Sensor Module
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | MQ-5 |
| Detectable Gases | LPG, Natural Gas, City Gas |
| Operating Voltage | 5V DC |
| Output Type | Analog & Digital TTL |
| Preheat Time | 24-48 Hours (Initial) |
| Heater Voltage | 5V ± 0.1V |
| Load Resistance | 20KΩ (Adjustable) |
| Operating Temperature | -10°C to 50°C |
| PCB Dimensions | 32mm x 20mm x 14mm |
| Compatibility | Arduino, Raspberry Pi, ESP8266 |
5 reviews
A
Anonymous
Mar 30, 2026
Rating: 4/5
Good value
Does what it says. Needs warm-up time before readings stabilize.
A
Anonymous
Mar 27, 2026
Rating: 5/5
Great for prototyping
Works well with my Arduino project. Sensitivity is adjustable via the potentiometer.
A
Anonymous
Feb 04, 2026
Rating: 5/5
Perfect for learning
Easy to wire up. Digital output triggers cleanly when gas is detected.
A
Anonymous
Jan 25, 2026
Rating: 5/5
Reliable sensor
Used this for a gas leak detection prototype. Response time is decent.
5 FAQ
Q: What is the pinout configuration?
A: VCC, GND, DO (Digital Out), and AO (Analog Out). Please refer to the datasheet.
Q: Is the sensitivity adjustable?
A: Yes, there is an onboard potentiometer to adjust the digital threshold.
Q: How long does it take to warm up?
A: Initial preheat is 24-48 hours. Subsequent warm-up is typically 1-2 minutes.
Q: Can this detect carbon monoxide?
A: No, this MQ-5 model is specific to LPG and Natural Gas. Consider MQ-7 for CO.
Q: Does this work with 3.3V logic?
A: The sensor operates at 5V, but digital output may need a level shifter for 3.3V boards.
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