Flame Sensors
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Flame Sensors
At Linear Systems, we offer high-quality Flame Sensors designed for reliable flame detection and safety assurance in industrial combustion systems. These sensors can accurately detect light sources within the flame’s wavelength range, making them ideal for oil burners in boilers and heating equipment where precise and responsive detection is essential.
Each Flame Sensor is built using advanced infrared-sensitive components encased in durable black epoxy, ensuring excellent sensitivity and long service life even in challenging environments. Designed for easy installation and consistent performance, these sensors deliver accurate and fast detection, preventing unsafe conditions and enhancing operational safety.
Key Features
Our Flame Sensors are engineered to deliver superior performance and convenience:
- Easy to install and operate
- Adjustable sensitivity for application flexibility
- Fast response time for quick flame detection
- High photosensitivity for accurate signal response
- Durable design with a professional finish
Working Principle
Each Flame Sensor uses a Light Dependent Resistor (LDR) to sense the visible light emitted by the flame. The sensor converts this light into an electrical signal, which is processed by the burner control system to verify the presence of a flame.
These sensors are best suited for oil burners in industrial boilers and heating systems, where they provide reliable detection of true flame light. However, they are not recommended for furnaces, where background glow from refractory bricks or other light sources may cause interference.
Available MODELS
- Easy to install and operate
- Flame Sensor (FS–2) – Side Viewing
- Flame Sensor (FS–3) – Equivalent to Satronic Sensors
Each model is built to meet specific viewing and installation requirements, ensuring compatibility with various burner systems and setups.
Why Choose Linear Systems
With over three decades of expertise in flame detection and combustion control, Linear Systems is one of the leading Flame Sensor manufacturers in India. Our sensors are rigorously tested for:
- Sensitivity and response accuracy
- High-temperature enduranc
- Long-term operational reliability
They are also compatible with our range of Flame Amplifiers, UV Sensors, and Burner Sequence Controllers, providing a complete flame monitoring solution for industrial applications.
Contact Us
Ensure the safety and efficiency of your combustion systems with precision-engineered Flame Sensors from Linear Systems.
Contact our team today for technical details, model recommendations, or OEM supply options.

