Space Age FAST Tube, Sectional Plastic Air Duct Sampling Tubes

hello this is Karen and today I'm here to talk to you about the space-age electronics SL mm duck smoke detector the innovative and unique features of this product provide improved efficiencies on the job and will lower your costs installing and servicing a typical overhead duct smoke detector can be a frustrating experience these problems have been eliminated by the Installer friendly and no tools required design of the space-age SL 2000 the SL 2000 design addresses all of the frustrations of installing a traditional overhead duct smoke detector right out of the box you'll see that the SL 2000 comes mostly assembled there are no loose filters or gaskets to install or lose the cover is fastened in place with innovative thumb screws that are held captive to avoid a situation where the screws could be dropped and not replaced wiring the unit is made easier due to the wiring diagram permane