5V DC Flame Detection Sensor Relay Switch Module with Adjustable Sensitivity
5V DC Flame Detection Sensor Relay Switch Module with Adjustable Sensitivity
The 5V DC Flame Detection Sensor Relay Switch Module uses an infrared receiver to detect flame wavelengths (760-1100 nm) and triggers a relay switch for high-current control. It is ideal for fire alarm systems, robotics, and industrial safety automation. With adjustable sensitivity, it responds reliably to small flames from candles to large burners.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 5V DC |
| Detection Angle | 60° |
| Detection Spectrum | 760 nm - 1100 nm |
| Output Type | Relay (NO, NC, COM) |
| Comparator IC | LM393 |
| Sensitivity Adjustment | On-board potentiometer |
What You Can Build With This
- Automatic fire alarm system with SMS alerts using GSM module
- Flame-seeking robot for firefighting competitions
- Smart home fire detection integrated with Home Assistant
- Industrial burner monitor with relay-triggered shutdown
Compatibility
Works with any 5V microcontroller including Arduino Uno, Mega, Nano, ESP8266, ESP32, and Raspberry Pi (with level shifting). The digital output connects directly to a GPIO pin, and the relay can switch high-current loads up to 10A at 250V AC. Common pairings include buzzer modules, water pumps, and solenoid valves for automated response.
Wiring Notes
Connect VCC to 5V, GND to ground, and the DO pin to a digital input on your microcontroller. The relay contacts (NO, COM) handle the load circuit. Ensure flame exposure does not exceed the sensor's temperature limit; keep plastic housing away from direct flame. Use a pull-up resistor if interfacing with 3.3V systems.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, the module's digital output connects directly to any Arduino Uno digital pin. Use a 5V supply from the Arduino to power the sensor.
How far can it detect a candle flame?
With sensitivity at maximum, the sensor can detect a standard candle flame from about 80-100 cm away. Range decreases for smaller or shielded flames.
Can the relay switch 230V AC loads?
Yes, the relay is rated for up to 10A at 250V AC. Ensure proper insulation and adhere to electrical safety standards when switching mains voltage.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items