Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Operating Voltage	3.3V - 5V DC
Detection Wavelength	760nm - 1100nm
Output Signal	Digital Switch Output (0/1) & Analog Voltage
Detection Range	Up to 100cm (varies by flame intensity)
Pin Configuration	3-Pin or 4-Pin Header
Comparator Chip	LM393 Wide Voltage Comparator
Operating Temperature	-10°C to 50°C
Current Consumption	Approx 20mA
PCB Dimensions	35mm x 18mm x 8mm
Sensitivity Control	Adjustable via Blue Potentiometer

5 reviews

Anonymous

Mar 27, 2026

Rating: 3/5

Confusing wiring at first

Took me a while to figure out the DO vs AO pins. Works once connected correctly.

Anonymous

Mar 11, 2026

Rating: 4/5

Good sensor, limited range

Detects candle flame well at close range. Don't expect long distance detection for large fires.

Anonymous

Feb 11, 2026

Rating: 5/5

Great for Arduino projects

Works perfectly with my Uno. Sensitivity is adjustable which is nice for tuning out background light.

Anonymous

Jan 30, 2026

Rating: 5/5

Perfect for science fair

Easy to wire and understand. Documentation could be better but plenty of online tutorials available.

Anonymous

Jan 23, 2026

Rating: 5/5

Reliable component

Used multiple units for a prototype. Consistent performance across all modules purchased.

5 FAQ

Q: Can this detect sunlight?

A: It is sensitive to infrared, so direct sunlight may trigger it. Use shielding for outdoor use.

Q: Can I connect multiple sensors?

A: Yes, you can connect multiple modules to different input pins on your microcontroller.

Q: What is the response time?

A: Typically responds within 15 microseconds of flame exposure.

Q: Does it work with Raspberry Pi?

A: Yes, but ensure voltage levels match GPIO requirements (3.3V logic).

Q: Is this suitable for home fire alarms?

A: This is for hobby/prototype use. Not certified for life-safety applications.

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