Duct detector inspection and test

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[@lumenfirealarms]

Cool I got a really old duct detector haven't tested yet!! Have fun!! ...

[@IanGSully]

In my opinion, I think System Sensor has the most high end products out there!

[@original8879]

Very good!

[@EYL8902]

I'm probably gonna get a System Sensor D4120 duct detector, if I find one thats new at a low price on ebay.

[@123qatar7]

It's installed in supply or return duct ?

[@ryanwoods4691]

Nice install, but is there supposed to be tape on the sampling tubes?

[@FireAlert]

no, I put it there so that if the house is burning it won't go off and we will all die, Thanks for watching!

[@ryanwoods4691]

@@FireAlert wait, but you have sd365 everywhere

[@JaskaranSingh-oz2qj]

I have this unit and its beeping from last week. What could be possibly wrong with it? Installed 6 months ago.

[@kamlesh7562]

why does this video not have sound or explanation?

[@FireTech7]

Can't wait to get one of these and not put it anywhere because I'm stupid

[@OftenAlwaysFresh]

Oh man, I'm working at a school and it has 2 of these in parallel but neither one has the reset button on them, do you know how to reset the tamper?

[@original8879]

Check the original manual or drawing… there has to be one! Sometimes it doesn’t appear like a button even.

[@lukasz20]

What’s the head model number on these LD4S?

[@shawn7024]

d4120

[@vrryan6]

What was that button you were holding?

[@FireTech7]

That's the tamper switch that cuts power to the detector when the cover is removed

[@vrryan6]

@@FireTech7 ok