Rare Variant of Kidde/Nighthawk KN-COSM-B?


I remember seeing these images on the internet of these and now that I look back, I realized that I have never seen them on YouTube or in any other media format besides these images. Nobody has actually found one of these in real life.

The alarm in question has the same features as any other KN-COSM-B, however the interesting thing here is the fact that there is no embroidered lettering on the test button or on each LED; rather, it’s all printed. Notably, the test button is labeled with “PUSH TO RESET” for some odd reason.

Could it be that I found a very first generation KN-COSM-B? Please let me know what you think.

Oh yeah, hmm…

I wonder if that’s an original Nighthawk one (not sure I know the model number), before Kidde acquired them (especially given the “NIGHTHAWK” logo on the bottom-left there).

They purchased Nighthawk in '95. I am not so sure when they started selling the KN-COSM-B, but I do know they were produced before Y2K.

This link says that combined detectors were released in '96.

I think that refers to the KN-COSM-B.

Oh, yeah, maybe: then again though I believe Nighthawk-branded products kept being sold some years after Kidde’s acquistion of them, so perhaps that’s what those photos depict.

Regardless, that variant is probably from 1996, but no later than September 1999. The reason I say not any later than 09/1999 is because the label design is different then. BA&F Vintage’s video tells you that. However, it still retained the Nighthawk branding.

It kinda looked like the Kidde version except with a Nighthawk logo in place of the Kidde.

Yeah, could be. One other difference that I noticed in addition to the ones you did is the fact that the lettering below the logo reads “Carbon Monoxide + Smoke Alarm” instead of “SMOKE AND CARBON MONOXIDE ALARM”.

I noticed that too. I didn’t want to go into too much detail cause the text was obviously different lol.

I kinda broadened it up a little bit tbh

Ah, yeah: every detail counts when it comes to potentially finding this seemingly really rare variant though! (including if it should be necessary to tell someone not as familar with life safety devices as we are what to look for)

Okay, I understand what you mean. Perhaps Steel City Alarms and @PhotoElev would know more about this alarm.