The nighthawk alarms 60 - 120 minutes after initial detection if below 100ppm. Then time for alarm decreases as concentration of CO increases. About 20 min for above 100, above 200, less than 10, above 300, less than 2 give or take a few minutes.
So the Nighthawk is junk? I knew something was up - mine in the bedroom hasn't went off for two years and I Know for sure I had a few good Guinness nights in there. Ka-pow! Honey, you hear something? Haha...Kaboom!
in my city an elderly couple died from poisoning because they left there car running in there car garage and the fumes went under the door after that happened i bought 3 alarms for my home
1 person died at a holiday inn on the 5th floor, in Charleston WV in 2012. Im getting the protech 7035 at amazon.
EMERALD451 3 weeks ago
thank you for the informative post and keep up the good work!
VideoGameCoupons 1 month ago
What stores sell the one that you are recommending? Also I can't make out what you are saying re the Brand name.
Thanks for your info. Very helpful.
50hellkat2 2 months ago
The nighthawk alarms 60 - 120 minutes after initial detection if below 100ppm. Then time for alarm decreases as concentration of CO increases. About 20 min for above 100, above 200, less than 10, above 300, less than 2 give or take a few minutes.
plrokster309 6 months ago
So the Nighthawk is junk? I knew something was up - mine in the bedroom hasn't went off for two years and I Know for sure I had a few good Guinness nights in there. Ka-pow! Honey, you hear something? Haha...Kaboom!
trainlinezoo 8 months ago
wow thats kind of shocking to see the other 2 didnt go off. will order a kit today no delay
daintyapple 9 months ago
Thank you so much. GREAT video!
Jayachandran1969 1 year ago
The 3rd unit at 0:37 looks like a ProTech 7035 Carbon Monoxide Detector.
BoogieWithStew 1 year ago
Great demonstration!
BoogieWithStew 1 year ago
in my city an elderly couple died from poisoning because they left there car running in there car garage and the fumes went under the door after that happened i bought 3 alarms for my home
Afk4life8 1 year ago
@Afk4life8 here are they installed?
SpecializedChild462 8 months ago
The peak level on the other two detectors turns on the sensor.
hyperbaricchicken101 1 year ago
What will a low level co alarm do if the levels are much higher?
hyperbaricchicken101 1 year ago
THANKS! Good info! I was searching for a method to actually test a CO detector. I think I will replace my 12 year old Nighthawk CO detector ASAP!
megapsycle 2 years ago
So are the cheaper models still safe to use? Will they alert you befor it's to late?
thinkford 2 years ago
@thinkford probably , but probably will break or malfunction sooner or so then the higher ones.
prosp3ct2 2 years ago