The KY-026 Flame Sensor Module detects fire by reading infrared light between 760nm and 1100nm wavelength. This ky-026 flame sensor arduino pairing works straight out of the box with no extra components needed. The sensor uses a photodiode to convert infrared radiation into a readable electrical signal.
This flame sensor module reads heat radiation, not visible flame colour. The ky-026 flame sensor price reflects good value for its dual output design, giving both digital and analog signals at once. Keep in mind that strong sunlight can cause false triggers since sunlight also contains infrared in the 760–1100nm band.
The 4-pin ky026 flame sensor connects to Arduino, NodeMCU board using the Arduino IDE. Students building fire alarm projects and testing safety circuits, hobbyists making smart home systems all use this module regularly. Plug it into a breadboard, connect VCC, GND, digital out, and analog out, and your first reading appears within seconds. StemVolt provide this module tested and ready to use.
Related Products:
- Checkout Flame And Fire Sensor Module 3-Pin
Features:
- Photodiode sensitivity covers 760nm to 1100nm infrared spectrum for reliable fire detection
- Dual output pins deliver both digital signal and analog voltage for flexible project use
- Supply voltage range of 3.3V to 5V allows direct connection to 3.3V and 5V microcontrollers
- Detection angle of 60 degrees gives wide coverage without rotating the sensor physically
Technical specifications:
| Specification | Details |
|---|---|
| Operating Voltage (VDC) | 3.3 ~ 5 |
| Spectrum Range | 760nm ~ 1100nm |
| Detection Angle | 0 to 60° |
| Operating Temperature (°C) | -25 to 85 |
| Dimensions (L x W x H) | 35 x 15 x 14mm |
Applications:
- A school fire alarm project uses this sensor to trigger a buzzer when flame is detected
- A robot uses the KY-026 Flame Sensor Module to locate and move away from open flames
- A forest fire early warning prototype reads infrared data and sends an SMS alert via GSM module
Package includes:
- 1 x KY-026 Flame Sensor Module














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