IR Flame Sensor Module 4-Pin

The IR Flame Sensor Module 4-Pin detects infrared radiation in the 760nm to 1100nm wavelength range through a single output channel, providing both analog and digital readings via its VCC, GND, DO, and AO interface pins, operating from 3.3V to 5V DC. The ir flame sensor uses an IR phototransistor as its core sensing element — this component’s electrical resistance changes specifically in response to infrared light at flame-characteristic wavelengths, distinguishing genuine flame radiation from regular ambient light across most of the visible spectrum.

The 4 pin flame sensor datasheet, the single output channel design means this module reports flame presence from one direction only — unlike the 5-channel flame sensor board which provides 120°+ multi-directional coverage, this ir flame sensor 4 pin module is intended for single-point monitoring where the flame source location is roughly known in advance, such as monitoring a specific stove burner, candle station, or equipment exhaust point. The flame sensor module’s analog output additionally allows reading relative flame intensity rather than just a binary detected/not-detected signal.

the 760-1100nm range overlaps with infrared emitted by sunlight and incandescent lighting, the ir flame sensor price reflects a sensor still requiring careful placement away from strong ambient IR sources to avoid false triggers. Well-suited for learners and makers, this IR flame sensor available at StemVolt enables smart safety, fire monitoring, and robotics projects using responsive infrared flame detection technology.

Related Products:

• Checkout The Flame And Fire Sensor Module 3-pin

Features:

• IR phototransistor detects flame-specific 760-1100nm wavelength radiation
• Single-channel design for focused single-point flame monitoring
• Analog output for relative flame intensity, digital for threshold trigger
• 4-pin VCC/GND/DO/AO layout for straightforward Arduino wiring
• 3.3V to 5V compatible with Arduino and ESP32 boards

Technical Specifications:

 Applications:

• IR Flame Sensor used for Arduino stove burner monitoring build
• College project uses ir flame sensor for single-point fire demo
• Kitchen safety uses 4 pin flame sensor datasheet for India gas stove alert
• Equipment monitor uses ir flame sensor 4 pin for exhaust point check
• STEM kit uses flame sensor module for IR detection learning demo

Package Includes:

• 1 x IR Flame Sensor Module 4-Pin