Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensing Element | Infrared Photodiode |
| Detection Wavelength | 760nm - 1100nm |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switching (0 and 1) |
| Detection Distance | Up to 80cm (varies by flame intensity) |
| Comparator Chip | LM393 |
| Adjustability | Sensitivity via Potentiometer |
| Indicator LED | Power and Trigger Status |
| Mounting Hole Diameter | 3.0mm |
| Board Dimensions | 32mm x 14mm x 8mm |
Anonymous
Mar 27, 2026
Rating: 5/5
Fast response time
Impressed by how quickly the output pin goes low when a flame is introduced. Ideal for applications where rapid detection is critical. The build quality feels solid for a budget component.
Anonymous
Mar 26, 2026
Rating: 4/5
Simple integration with Raspberry Pi
Used this with a Raspberry Pi GPIO pin. Since it outputs a digital signal, no ADC is needed. Make sure to use a pull-up resistor if your specific setup requires it, though the board has basic circuitry built-in.
Anonymous
Mar 24, 2026
Rating: 3/5
Works but range is limited indoors
The sensor functions well, but don't expect the full 80cm range in a brightly lit room. It performs much better in dimmer conditions. Still useful for close-range detection applications.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable for student projects
Bought ten of these for our high school robotics club. They are robust and easy to wire up. Students had no trouble integrating them into their fire-fighting robot prototypes.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for Arduino Fire Alarms
This sensor works exactly as described. I connected it to my Arduino Uno and was able to detect a lighter flame from about 60cm away. The sensitivity potentiometer makes it easy to fine-tune for different environments.
Anonymous
Mar 01, 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 adjusting the screw on the back, it only triggers on actual flames. Just remember it detects IR, so strong sunlight can interfere if not shielded.
Q: Can this detect a candle flame through glass?
A: Infrared radiation can pass through certain types of glass, but standard window glass may block some IR wavelengths. We recommend testing with your specific glass type, but direct line-of-sight yields the best results.
Q: Does this module output analog or digital signals?
A: This module outputs a digital signal (HIGH/LOW). When a flame is detected, the DO pin goes LOW. There is no analog output pin on this specific version.
Q: Is this waterproof for outdoor use?
A: No, this PCB module is not waterproof. If you intend to use it outdoors, you must house it in a weatherproof enclosure with an IR-transparent window.
Q: What is the power consumption of this sensor?
A: The module typically consumes around 20mA when active. It is suitable for battery-powered projects, but we recommend turning it off via a transistor or relay if long-term battery life is critical.
Q: Will this trigger on hot objects like a stove without a flame?
A: The sensor is tuned to the specific wavelength of flames (760-1100nm). While extremely hot objects emit IR, this module is generally designed to ignore standard heat sources unless they are producing an open flame or glowing intensely.
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