This is an item I hope to never use. Short of attempting to burn down my house it is hard to provide a through review.
What I do know is that the item came in reasonable time (considering the distance it traveled) and it functions as advertised. As others have mentioned, it really could use some better documentation. It would be nice to know the button functionality! Seems like a self test button, and a pairing button. But can it be a silence button as well?
I did plug it in to my printer and ran a short 15 minute print. It did seem to handle the load without issues and without getting noticeably warm. On a second test I did trigger the alarm and the printer did shutdown. So far so good.
What I do NOT know is if your printing material PLA/ABS/PETG starts to produce smoke, is it already too late? Will shutting of the power stop the flames? Will the smoke from those materials trigger this detector?
But the way I figure it, this device is just one level of insurance. I have multiple levels of protection including a fire resistant enclosure, temperature shutoff, and and automatic fire extinguisher. I do not want to become another "example to others" as to how not to use a 3D printer.
Response from Mark | Jan. 13, 2020
I totally agree with you. we don’t want a fire, and the probability is very small, but once it happens, the consequences are unimaginable. it will alarm beep and shut down the power, that is very useful for me and someone like me so I made it.Like you said,this device is just one level of insurance. Optical beam smoke detectors work on the principle of light obscuration, where the presence of smoke blocks some of the light from the beam, typically through either absorbance or light scattering. Once a certain percentage of the transmitted light has been blocked by the smoke, a fire is signalled.