This circuit is basic flame / fire detector using any metal wire once the fire / flame is in between 2 metal probes, relay will turn on/ you can connect to another application or ziren to alarm.

Technical information:
   - Require 12VDC Supply, current consume 80mA
   - Stand by current at 30mA
   - Terminal to connect the sensor, ( you can use any metal wire to be sensor )
   - 1 pot to adjust the sensitivity
   - 2 LED to indicate power on and flame / fire detection
   - [ NO / NC ] Relay 12V DC, Max load 5A with the terminal ( in green color )
   - Comes with the schematic diagram
   - PCB size  3.56" x 1.84"

Download User Manual