Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Wavelength | 760nm - 1100nm |
| Detection Angle | 60 degrees |
| Output Signal | Digital Switching Output (0 and 1) |
| Comparator Chip | LM393 |
| Sensitivity | Adjustable via potentiometer |
| PCB Dimensions | 32mm x 14mm |
| Mounting Hole Diameter | 3mm |
| Compatible Boards | Arduino, Raspberry Pi, STM32 |
| Application Range | Fire alarm systems, robotics, safety monitoring |
Anonymous
Mar 30, 2026
Rating: 5/5
Fast response time
The reaction time is impressive. As soon as the IR spectrum of a flame hits the sensor, the LED indicator lights up and the output goes low. Highly recommended for automation projects.
Anonymous
Mar 29, 2026
Rating: 5/5
Reliable detection range
I integrated this into a home safety prototype. It consistently detects a candle flame up to 80cm away in a dark room. Very happy with the stability of the digital output.
Anonymous
Mar 15, 2026
Rating: 4/5
Solid component for prototypes
We bought ten of these for our workshop. Nine worked flawlessly immediately. One had a loose pin which we soldered back on. Overall, excellent quality for prototyping purposes.
Anonymous
Mar 09, 2026
Rating: 5/5
Easy to interface
As a beginner, I found this very easy to connect to my microcontroller. Just three pins needed: VCC, GND, and DO. The documentation online is also quite helpful for getting started.
Anonymous
Mar 07, 2026
Rating: 4/5
Good value, needs calibration
Great little module for the price. Out of the box, it was a bit too sensitive to ambient light, but after turning the potentiometer slightly, it works perfectly for detecting flame sources only.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for my Arduino fire alarm project
This sensor works exactly as described. I tested it with a lighter from about 30cm away and it triggered instantly. The sensitivity pot makes it easy to calibrate for different environments.
Q: Can I power this directly from a 9V battery?
A: No, the operating voltage is strictly 3.3V to 5V DC. Connecting it directly to a 9V battery will damage the module. Please use a voltage regulator or a compatible microcontroller board to supply the correct voltage.
Q: Can this sensor detect sunlight or just artificial flames?
A: The sensor detects infrared waves in the 760nm-1100nm range. While strong sunlight contains IR, the module is primarily tuned for the specific spectrum of a flame. You can adjust the sensitivity potentiometer to ignore ambient light sources like sunlight or lamps.
Q: What is the maximum distance this module can detect a standard lighter flame?
A: Under normal indoor lighting conditions, the effective detection range for a standard lighter flame is typically between 30cm and 80cm. This varies based on the sensitivity setting and ambient light levels.
Q: Does this module provide an analog output or only digital?
A: This specific model provides a digital switching output (0 and 1) via the DO pin. If you require analog readings to measure flame intensity, please look for our AO variant models.
Q: Is a library required to use this with Arduino?
A: No external library is required. Since the output is digital, you simply read the pin state using the standard digitalRead() function in your Arduino sketch. It acts like a simple switch.
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