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 Adjustment | Potentiometer adjustable |
| Board Dimensions | 32mm x 14mm x 8mm |
| Mounting Hole Diameter | 3mm |
| Interface Type | 3-Pin PH2.0 Connector |
| Application Compatibility | Arduino, Raspberry Pi, STM32 |
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable and durable
We have used dozens of these in our workshop for student prototypes. They are robust and handle repeated testing well. Highly recommended for educational purposes.
Anonymous
Mar 21, 2026
Rating: 5/5
Great for university projects
Bought this for my final year project on smart home safety. It integrates seamlessly with microcontrollers. The digital output is clean and reliable.
Anonymous
Mar 19, 2026
Rating: 4/5
Works well indoors
Very sensitive to candle flames and lighters. I noticed it can be triggered by strong infrared heat sources too, so keep that in mind for your coding logic. Overall a solid purchase.
Anonymous
Mar 17, 2026
Rating: 5/5
Fast response time
The reaction time is impressive. As soon as a flame appears within the cone, the LED on the board lights up and the output pin goes low instantly. Excellent for real-time monitoring.
Anonymous
Mar 12, 2026
Rating: 4/5
Good value but needs calibration
The module is responsive and detects flame sources quickly from about 1 meter away. You do need to spend some time adjusting the potentiometer to avoid false positives from sunlight or bright LEDs.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for fire safety projects
This sensor works exactly as described. I used it with an Arduino Uno to build a simple fire alarm system. The sensitivity adjustment pot makes it very easy to calibrate for different lighting conditions.
Q: Does it work outdoors in direct sunlight?
A: Direct sunlight contains infrared radiation that may trigger the sensor. For outdoor use, we recommend adding a physical shield or adjusting the sensitivity threshold carefully to minimize false alarms.
Q: Is this compatible with 5V Arduino boards?
A: Yes, absolutely. The module operates on a voltage range of 3.3V to 5V, making it fully compatible with Arduino Uno, Nano, Mega, and most other 5V microcontrollers.
Q: What is the maximum detection distance?
A: Under normal indoor conditions, the effective detection range is typically up to 100cm (approx. 3 feet) for a standard candle flame. This varies based on flame intensity and ambient light.
Q: How many pins does the connector have?
A: The module features a 3-pin interface: VCC (Power), GND (Ground), and DO (Digital Output). Some versions also include an AO (Analog Output) pin depending on the specific batch.
Q: Can this sensor detect smoke?
A: No, this module is specifically designed to detect the infrared wavelength of flames (firelight). It does not detect smoke particles; you would need a dedicated smoke sensor for that.
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