Description
The 5V DC Flame Detection Sensor Relay Switch Module is a reliable fire detection module designed to detect flames and trigger an automatic response through an onboard relay. This module is widely used in fire alarm systems, safety monitoring systems, Arduino projects, robotics applications, and industrial automation.
The module uses a high-sensitivity infrared flame sensor that can detect fire or flame sources within a specific wavelength range. When a flame is detected, the onboard relay automatically switches, allowing the module to control external devices such as alarms, water pumps, exhaust fans, or emergency lighting systems.
This flame sensor relay module operates on 5V DC power, making it compatible with popular microcontrollers like Arduino, ESP32, ESP8266, Raspberry Pi, and other development boards.
Because of its compact design and built-in relay, it is easy to integrate into fire detection circuits, safety monitoring devices, and automation systems.
🔧 Key Features
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High sensitivity flame detection sensor
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Built-in relay switch output
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Operating voltage 5V DC
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Adjustable detection sensitivity
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LED power indicator
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LED detection indicator
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Stable and reliable performance
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Easy interface with microcontrollers
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Compact PCB design
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Ideal for safety and automation systems
⚙️ How the Flame Detection Sensor Works
The 5V DC Flame Detection Sensor Relay Switch Module detects fire by sensing infrared radiation emitted by flames. Flames emit infrared light in a wavelength range typically between 760nm and 1100nm.
When the sensor detects flame radiation:
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The onboard comparator processes the signal.
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If the detected intensity exceeds the threshold, the module activates the relay.
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The relay can then control external devices such as alarms or pumps.
This allows the system to automatically respond to fire or flame detection.
The detection sensitivity can be adjusted using the onboard potentiometer, allowing customization for different environments.
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 5V DC Flame Detection Sensor Relay Switch Module |
| Operating Voltage | 5V DC |
| Sensor Type | Infrared Flame Sensor |
| Detection Range | Up to ~1 meter (depending on flame size) |
| Detection Angle | ~60° |
| Output Type | Relay Output |
| Relay Voltage | 5V |
| Sensitivity Adjustment | Yes (Potentiometer) |
| Indicator LEDs | Power & Detection |
| Interface | VCC, GND, OUT |
| Condition | Brand New |
| Quality | High Reliability |
(Specifications may slightly vary depending on manufacturer batch.)
🔌 Applications
The 5V DC Flame Detection Sensor Relay Switch Module is widely used in:
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Fire alarm systems
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Industrial safety monitoring
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Smart home fire detection
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Arduino safety projects
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Robotics fire detection systems
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Automatic fire extinguishing systems
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Gas stove monitoring systems
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IoT safety monitoring devices
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Security and surveillance systems
It is especially useful for automatic emergency response systems.
🧩 Compatibility
This module can be easily integrated with:
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Arduino UNO / Nano / Mega
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ESP8266 / ESP32
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Raspberry Pi
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STM32 development boards
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PLC automation systems
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IoT monitoring platforms
The relay output allows direct control of external devices without additional driver circuits.
🎓 Ideal for Education & DIY Projects
The 5V DC Flame Detection Sensor Relay Switch Module is commonly used in:
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Engineering college projects
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Robotics competitions
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IoT safety projects
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Electronics workshops
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STEM learning kits
Students and hobbyists use this module to learn concepts such as:
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Infrared sensing technology
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Fire detection systems
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Relay switching circuits
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Automation safety systems
⚠️ Safety Precautions
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Do not expose the module to high heat directly
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Avoid false detection from sunlight or strong IR sources
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Adjust sensitivity according to environment
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Use proper enclosure in industrial applications
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Ensure correct voltage supply
Following these precautions ensures accurate detection and reliable operation.
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