How does an LEL sensor work?

Related questions

1. What does RFR mean on Instagram?
2. What does LEL gas mean?
3. What is UFL and LFL?
4. What does lkr mean?
5. Is pure oxygen flammable?
6. What does f4f mean on Instagram?
7. What does LEL mean texting?
8. What does DMed a girl mean?
9. What IRL means?
10. What Does CFC mean on Instagram?

Tags

1. #minimum
2. #sensors
3. #measure
4. #gases
5. #ignite
6. #indicates
7. #catalytic
8. #source
9. #limit
10. #explosively
11. #explosive
12. #sensor
13. #percent
14. #combustible
15. #lower
16. #there
17. #concentration
18. #ignition