Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	TELESKY
Model Number	Flame Sensor 4-Wire
Detection Type	Infrared (IR)
Wavelength Range	760nm - 1100nm
Operating Voltage	3.3V - 5V DC
Output Signal	Digital Switch Output (0 and 1)
Pin Configuration	4-Wire (VCC, GND, DO, AO)
Detection Angle	60 degrees
Effective Distance	Up to 100cm (depending on flame intensity)
Compatibility	Arduino, Raspberry Pi, STM32

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Excellent sensitivity control

I was worried about false alarms, but the adjustable sensitivity solves that. It ignores the pilot light on my stove but detects an open flame instantly. Great little component for custom automation systems.

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable detection

We use these in our workshop for educational kits. They are robust and handle student handling well. The IR receiver picks up candle flames from a good distance. No issues so far after months of use.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for my fire alarm project

This sensor works exactly as described. I connected it to my Arduino Uno and the digital output triggered immediately when I lit a match nearby. The sensitivity potentiometer allows for great adjustment. Highly recommended for DIY safety projects.

Anonymous

Mar 11, 2026

Rating: 4/5

Good value, needs calibration

The module is solid for the price. Out of the box, it was a bit too sensitive to sunlight, but after tweaking the blue potentiometer, it works perfectly indoors. The analog output is also a nice feature for measuring flame intensity.

Anonymous

Mar 09, 2026

Rating: 5/5

Great for university projects

Bought this for a final year project on smart home safety. It integrates easily with standard microcontrollers. The 4-wire setup gives you flexibility to use either digital or analog pins. Delivery was fast too.

Anonymous

Mar 06, 2026

Rating: 4/5

Works well but instructions are sparse

The hardware is excellent, but the included paper has very little detail. You definitely need to look up a tutorial online to understand how to adjust the threshold properly. Once set up, it's very responsive.

5 FAQ

Q: Can this detect a candle flame through glass?

A: Infrared signals can be attenuated by certain types of glass. While it might detect a strong flame through thin clear glass, performance is not guaranteed. For best results, ensure a direct line of sight.

Q: Is this sensor waterproof for outdoor use?

A: No, this module is not waterproof. It is designed for indoor use or protected enclosures. Exposure to rain or high humidity may damage the electronic components.

Q: What is the difference between the DO and AO pins?

A: DO (Digital Output) provides a high/low signal based on whether the flame exceeds your set threshold. AO (Analog Output) provides a continuous voltage value representing the intensity of the detected infrared light.

Q: How do I adjust the detection distance?

A: There is a blue potentiometer on the board. Turn it clockwise to increase sensitivity (detecting flames from further away) and counter-clockwise to decrease it. Use a small screwdriver for adjustment.

Q: Does this module work with 3.3V logic levels like ESP32?

A: Yes, the module operates on a voltage range of 3.3V to 5V, making it fully compatible with ESP32, ESP8266, and 3.3V Arduinos without needing a level shifter.

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