Has anyone found good smoke/fire/co2 alarms to use onboard? The FirstAlert ones we have keep going off randomly, sometimes in the middle of the night. Maybe due to humidity?
Fire/smoke/CO2 alarms
- Thread starter skunther
- Start date
For CO alarms our e36 had wired in alarms. The attached pic shows the replacements we found. Marine approved and work well. No issues or false alarms. One is installed in the salon near the Nav station, the other is in the aft cabin.
Do you have lead acid batteries? Or stored solvents? Are the alarms near them? Outgassing batteries and solvents will cause false CO alarms. I don't think humidity plays a part unless it is actually steam in the air.
Otherwise, I think we have the same combined units as you do, and don't get false alarms (no lead acid batteries and solvents all stored outside living space).
Mark
Otherwise, I think we have the same combined units as you do, and don't get false alarms (no lead acid batteries and solvents all stored outside living space).
Mark
Do t they always go off at night? At this point I think they are engineered to have the low battery alarm only go off in the middle of the night.
jssailem
SBO Weather and Forecasting Forum Jim & John
- Oct 22, 2014
- 23,143
jssailem
SBO Weather and Forecasting Forum Jim & John
- Oct 22, 2014
- 23,143
jssailem
SBO Weather and Forecasting Forum Jim & John
- Oct 22, 2014
- 23,143
Just looked up the SafeTAlert line and foudn this site.
www.mtiindustries.com
For Your Boat | MTI Industries Inc
www.mtiindustries.com
There’s a reason for that - temperatures at night tend to be slightly lower than during the day. Lower temperatures bring the battery voltages down slightly. As the batteries weaken they go past the low voltage threshold in those lowered temperatures first.
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jssailem
SBO Weather and Forecasting Forum Jim & John
- Oct 22, 2014
- 23,143
That sounds all to logical.
Personally I think it is evil demons in the unit that drain the battery so that it wakes the neighbohood and usually the babies
at 0:00 Dark-Thirty. Parents get no rest and are challenged to do good while they are feeling sleep deprived.
Personally I think it is evil demons in the unit that drain the battery so that it wakes the neighbohood and usually the babies
at 0:00 Dark-Thirty. Parents get no rest and are challenged to do good while they are feeling sleep deprived.
We have the Firebox/Xintrex CO detector and so far no problems with nuisance alarms. The generic Smoke Detector works well and lets us know when we're frying something on the stove.
We have the 65 Series detector. No problems with false alarms. One caveat: many (all?) of these devices have a sensor in them that is supposed to be replaced every 7 years or so. Since the insurers require these devices, it is a recurring expense for us and a revenue stream for the alarm makers. (IMHO)Just looked up the SafeTAlert line and foudn this site.
For Your Boat | MTI Industries Inc
It's a shame they were not designed such that a new sensor cannot be easily swapped in.
Oh... Well....
Lead acid batteries, but stored outside in the aft cockpit locker, so likely not the issue. No solvents onboard.
When our batteries are low, the units chirp every so often, but not go off in alarm mode. However, that chirping does always seem to be in the middle of the night.
Mark
Low battery conditions do no create a alarm activation. The low battery indicator has to be different from the alarm so to not enabling a normalization of deviance to the actual alarm. Only (typically) commercial systems have "fire" detectors/alarms and there is no stand alone smoke detector only smoke alarms. detectors sends a message to a remote location while alarms are localized. Typical false alarms (carbon monoxide) are from hydrogen produced from charging batteries. Solvents use to be a potential also but with the elimination of halogenated solvents, this has all but been eliminated. I'm sure some really cheap alarms could have many cross sensitivities and the sky's the limit with those.