Flame Sensor with LM393 Voltage Comparator Discount




Flame Sensor with LM393 Voltage Comparator

Getting Started with Flame Sensor

This is a 3.3V ~ 5.3V compatible Flame Sensor with an LM393 voltage comparator. You can adjust the sensitivity of this flame sensor. It has a signal output indicator to let you know if the flame spectrum is detected.

Features of Flame Sensor

  • Detects flame spectrum
  • Sensitivity is adjustable
  • Has wide range LM393 voltage comparator
  • Output signal indicator
  • Spectrum detection ranges from 760nm to 1100nm
  • Detection range (angle) is up to 60o
  • Operating Voltage: 3.3V ~ 5.3V
  • From -25oC to 85oC Operating Temperature
  • Hole Size: 2.0mm Mounting Holes
  • Weighs only 5 grams
  • Small Size: 2.73 x 1.54 (cm) | 27.3 x 15.4 (mm)

Pin Definition (When Connected to an MCU)

  • VCC: 3.3V ~ 5.3V
  • GND: Power Supply Ground
  • AOUT: MCU.IO Analog Output
  • DOUT: MCU.IO Digital Output
Pinout Reference Guide to Raspberry Pi Pico Connection
Pinout Reference Guide to STM32

Applications of Flame Sensor

  • Fire Alarm
  • Fire Detection
  • Firefighting Robot


This flame sensor does not have any fire protection. It only detects flame. Contact with fire will damage the sensor.

Items Included

  • 1x Flame Sensor
  • 1x Jumper Wire 4-PIN (Custom Connector)
Shipping & Delivery

We accept returns on non-sale items that are in original packaging, unused, and unwashed within 30 days of receipt. Please follow our returns/exchanges process below. If items do not meet our requirements for return, they will be shipped back to you in lieu of a refund. Shipping and handling charges are non-refundable (exceptions may apply).

Returns & Exchanges Process: If item(s) fit within our returns guidelines found in the Returns. Please allow 7-10 business days for the credit to appear on your account after your return is processed.