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Home / Computer Hardware, Monitors & Peripherals / Flame Sensor Module - Fire Source Detection with IR Receiver and Flame Alarm (3/4-Wire)

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
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
Operating Temperature -10°C to +50°C
Module Dimensions 32mm x 17mm x 8mm
Weight 3 grams
Wire Configuration 3-Wire or 4-Wire Option
Status Indicator Power LED and Signal LED

5 reviews

A

Anonymous

Apr 12, 2026

Rating: 4/5

Sensitive but needs tuning

Good detection range for a small module. You do need to spend some time calibrating the sensitivity screw to avoid false positives from bright lights. Overall satisfied.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Fast delivery

Arrived quickly and was packaged well in anti-static foam. The pins were straight and ready to solder. No issues during initial testing.

A

Anonymous

Jan 30, 2026

Rating: 3/5

Documentation lacking

The hardware works fine, but the included paper had very little info. I had to search online for wiring diagrams. Would be nice to have a QR code to a guide.

A

Anonymous

Jan 28, 2026

Rating: 5/5

Perfect for safety prototype

Integrated easily into my home automation test bench. The digital output is clean and the response time is quick when exposed to a lighter flame at close range.

A

Anonymous

Jan 26, 2026

Rating: 5/5

Great for Arduino projects

Works exactly as described. I used this for a hobby safety alarm prototype and the sensitivity is adjustable via the potentiometer. Very easy to interface with microcontrollers.

5 FAQ

Q: What is the difference between the 3-wire and 4-wire versions?

A: The 4-wire version includes an analog output pin (AO) for variable signal reading, while the 3-wire version typically provides only digital output (DO).

Q: What is the maximum detection distance?

A: Detection range depends on flame intensity, but typically works reliably within 100cm for a standard lighter flame under normal conditions.

Q: Is this compatible with 3.3V logic boards like ESP32?

A: Yes, the module operates within the 3.3V to 5V DC range, making it compatible with ESP32, Arduino, and Raspberry Pi GPIO pins.

Q: Does sunlight trigger false alarms?

A: Direct sunlight or strong IR sources can interfere with detection. We recommend testing sensitivity indoors or shielding the sensor from direct sun.

Q: Can I connect this directly to a Raspberry Pi?

A: Yes, connect VCC to 5V or 3.3V, GND to GND, and DO to a GPIO pin. Ensure you configure the GPIO as an input in your software.

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