“They do well in those.” Barr said he has photoelectric detectors in his own home but also has ionization detectors, which he says are better than not having anything at all. “The bottom ...

Photoelectric, ionization, or both? Ionization models are good at detecting fires that burn fast and move quickly, like kitchen grease fires. Photoelectric models are good for detecting smoldering ...

[Ashish] demonstrates the well-known photoelectric effect by triggering a sub-biased neon lamp with visible light from an LED. Neon bulbs work on the principle of voltage-induced ionization ...