Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Detection Wavelength	760nm - 1100nm
Operating Voltage	3.3V - 5V DC
Output Type	Digital TTL Output
Comparator Model	LM393 Wide Voltage Comparator
Board Dimensions	30mm x 16mm
Response Speed	15 Microseconds
Operating Temperature	-10°C to +50°C
Connection Type	3-Pin or 4-Pin Header
Adjustment	Sensitivity Potentiometer Included
Primary Use	Robotics, Educational Kits

5 reviews

Anonymous

Apr 07, 2026

Rating: 3/5

Needs calibration

Had to tweak the pot quite a bit to avoid false positives from sunlight. Works well indoors though.

Anonymous

Mar 26, 2026

Rating: 5/5

Easy to wire

The 3-wire setup was straightforward. LED indicators are helpful for debugging connections.

Anonymous

Mar 09, 2026

Rating: 5/5

Bulk order quality

Ordered 10 for our classroom. All arrived working and students found them easy to integrate.

Anonymous

Feb 17, 2026

Rating: 4/5

Good sensitivity

Detects flame quickly. Just remember this isn't a certified home alarm device, but great for prototypes.

Anonymous

Jan 18, 2026

Rating: 5/5

Great for Arduino projects

Works perfectly with my Uno. Sensitivity is adjustable via the potentiometer which is very convenient for testing.

5 FAQ

Q: Does it come with cables?

A: No, headers are included but wiring cables are sold separately.

Q: Is it compatible with Raspberry Pi?

A: Yes, it works with any microcontroller supporting 3.3V or 5V logic levels.

Q: Can it work outdoors?

A: It may be affected by direct sunlight due to IR interference. Best used indoors or shaded.

Q: Can this detect smoke?

A: No, this module detects infrared radiation from flames, not smoke particles.

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

A: 4-wire includes an analog output (AO) for variable sensitivity reading, while 3-wire is digital only.

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