Re: Universal CO, Propane and Natural Gas detector

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djenka2 wrote:
> Hi,
> I bought Kidde 3 in 1 detector (CO, Propane and Natural Gas) but it's
> not what I was looking for.  In the Kidde guide it says that human will
> smell the gas before the detector gets activated which I don't like at
> all, hmm what the point of having one then.  It will activate the alarm
> at 25% level where 30% is needed for explosion.  I know there were some
> universal 3-in-1 detectors that activates alarm at 5% but don't know
> the brand anymore.  The Kidde is loud but when the basement door is
> closed I can hardly hear the alarm on main floor, not to mention one
> floor up where all the bedrooms are.
> Is there anything on the market (and what brand) that will do at least
> CO and natural gas and that can be interconnected to one more unit (on
> the main floor or first floor) that is not wirelles.  I've heard there
> are some units that can be interconnected thru 110V receptacles where
> they are plugged in.  If not, I don't mind even running wires.
>
> Thanks

I don't know of a 3-in-one that is adjustable to 5% of LEL.  They may
exist though.  Here's what I could dig up for you on single purpose
units:

1. Heating gas detector:  Macurco's GD-1D has low and high level
triggers.  The low level is sett for 10% of LEL.  The high level
trigger is at 25% LEL.

2. Carbon monoxide detector: Macurco CM-S1 is a UL-listed CO detector
for use with fire and security alarms.  It complies with UL standards
2075 and 2034.  Instead of a fixed percentage of CO in the air, the new
standards require that the detector alarms based on gas content and
time duration.  In other words, a low percentage of CO in the air for a
long time will trip the unit, but a high percentage will trip it in a
relatively short time.  Since the affect of CO exposure is cumulative
over time, this makes more sense than having a single setting.

3. Propane and natural gas both trigger the  GD-1D so you would only
need two detectors to fulfill your requirements -- not three.  I
realise this isn't the ideal "all-in-one" solution but perhaps it comes
closer to what you need than the Kidde models.

Regards,
Robert L Bass
Bass Home Electronics
www.BassBurglarAlarms.com