Passive fire suppression

[Tsaints1115]

What's everyone's opinion on these passive fire suppression products, particularly the "ball" style? The idea that once they are installed they are hands free in that they will stay inactive until there's an actual fire. I'm considering one for the engine compartment.

https://www.elidefireus.com/product-page/mini-elide-fire-ball-4-inches

[raustinss]

id rather have a full car system with nozzles maybe 2 at the engine one interior one by fuel tank

[BMR Sales]

"We recommend storing and installing our products in areas that do not exceed -40F and +200F. Even at temperatures outside this range the Elide Fire Ball will not activate, but the components can begin to degrade and result in a less effective product and activation."

I don't think you want that under your Hood