From discount :      xTool Fire Protection Set: Automatic Fire Extinguishment, &nBsp;   Automatic CO2 fire extinguishing for compatible closed xTool laser machines. Specially developed for the closed xTool laser series F2 Ultra UV, P2S, S1, F1 Ultra, M1 Ultra and F2 ultra. Extinguishing function only; Detection, alarm and shutdown are taken over by the integrated safety system of the machine. Automatic CO2 release as soon as a signal is received from the laser machine. Easy to install; after release, the CO2 gas bottle must be replaced.     CE number plate, as good as new, original packaging, original goods     The pricing was done according to Internet search