• 4 Pin IR Flame Sensor Module for Arduino with infrared receiver and adjustable sensitivity.
  • 4 Pin IR Flame Sensor Module for Arduino, LM393 fire detector with infrared receiver for DIY projects.
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LM393 IR Flame Sensor Module 4-Pin Fire Detector for Arduino DIY Kit

LM393 IR Flame Sensor Module 4-Pin Fire Detector for Arduino DIY Kit

HK$10.00
HK$10.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

Detect fire and light sources with precision using this LM393 4-Pin IR Flame Sensor Module. Designed specifically for Arduino and microcontroller projects, this module is sensitive to flame wavelengths between 760nm and 1100nm. Whether you are building a fire alarm system, a firefighting robot, or a safety monitoring device, this sensor provides reliable detection with both digital and analog outputs.

Key Features:

  • High Sensitivity: Detects flames or light sources in the 760nm–1100nm range.
  • Wide Detection Angle: approximately 60 degrees, specifically tuned for flame spectra.
  • Dual Output Modes:
    • DO (Digital Output): Switch signal (0 and 1) for easy logic integration.
    • AO (Analog Output): Provides real-time voltage values for higher accuracy measurement.
  • Adjustable Sensitivity: On-board blue potentiometer allows you to fine-tune the detection threshold.
  • Clean Signal: Uses the LM393 comparator for a stable waveform and strong driving ability (>15mA).

Technical Specifications:

  • Controller: LM393 Comparator (Wide voltage)
  • Working Voltage: 3.3V – 5V DC
  • Detection Range: Up to 80cm (Greater distance for larger flames)
  • Indicators: Power LED and Digital Output LED
  • PCB Size: 3.2cm x 1.4cm
  • Mounting: Fixed bolt hole for easy installation

Pinout:

  1. VCC: 3.3V-5V Voltage
  2. GND: Ground
  3. DO: Digital Output Interface (0 and 1)
  4. AO: Analog Output Interface

Note: The sensor should be kept at a safe distance from the actual flame to avoid heat damage.

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