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:
- 760-1100nm spectrum specifically targets flame IR emission wavelengths
- 4-pin VCC/GND/DO/AO for both threshold and continuous intensity reading
- KY-026 named designation with extensive Arduino tutorial ecosystem
- 0-60° detection cone for moderately wide flame coverage
- -25°C to 85°C operating range suits indoor and outdoor installations
Technical specifications:
| Specification | Details |
|---|---|
| Operating Voltage | 3.3 V – 5 V DC |
| Spectrum Range | 760 nm – 1100 nm |
| Detection Angle | 0° to 60° |
| Output Signal | Digital and Analog Output (DO, AO) |
| Operating Temperature | -25°C to +85°C |
| Dimensions | 35 mm × 15 mm × 14 mm |
Applications:
- KY-026 Sensor used for Arduino fire detection alarm project build
- Robot uses flame sensor ky026 for India firefighting robot navigation
- STEM kit uses ky-026 flame sensor arduino for candle detection demo
- Security build uses flame sensor 4 pin for fire presence alert
Package includes:
- 1 x KY-026 Flame Sensor Module














Sunita Mittal –
Cash on delivery option and responsive support ensured a smooth purchase experience, while the sensor performed accurately in flame detection experiments
Vikas Agrawal –
Secure packaging received
Anil Poddar –
Trusted store quality
Varun Jindal –
Highly recommended product
Preeti Garg –
Received this flame sensor in three days, detection was quick and accurate, making it perfect for my science exhibition project.
Nidhi Singhal –
Delivered in 3 days
Rajesh Goyal –
Suitable for educational and automation projects, offering stable performance and easy integration with popular development boards
Sandeep Bansal –
This module provides reliable flame detection and adjustable sensitivity, making it ideal for arduino projects, science exhibitions, and fire monitoring applications