low level CO detectors

Al D'Ambola_2

The NSI 3000 low level CO Monitor exceeds the UL 2034 rating.

The screen will show 5ppm and sound the alarm at 15ppm after it has measured 15ppm for 15 minutes. It is only sold to contractors.

www.nationalcomfortinstitute.com

Dan C._2

I am looking for

a low level CO detector that meets all of the following requirements. Does anyone know where I can get one or if there is one that even meets these requirments? Thanks


If there is no carbon monoxide detector with an alarm already installed in
compliance with the most current edition of NFPA 720, NFPA 70 and the
Massachusetts State Building Code in the residential unit served by the side
wall horizontally vented gas fueled equipment, a battery operated carbon
monoxide detector with an alarm shall be installed in compliance with the most
current edition of NFPA 720, NFPA 70 and the Massachusetts State Building
Code.
2. In addition to the above requirements, if there is not one already present, a
carbon monoxide detector with an alarm and a battery back-up shall be installed
and located in accordance with the installation requirements supplied with the
detector on the floor level where the gas equipment is installed. The carbon
monoxide detector with an alarm shall comply with 527 CMR, ANSI/UL 2034
Standards or CSA 6.19 and the most current edition of NFPA 720. In the event
that the requirements of this subdivision can not be met at the time of the
completion of the installation of the equipment, the installer shall have a period
of thirty (30) days to comply with this requirement; provided, however, that
during said thirty (30) day period, a battery operated carbon monoxide detector
with an alarm shall be installed in compliance with the most current edition of
NFPA 720, NFPA 70 and the Massachusetts State Building Code. In the event
that the side wall horizontally vented gas fueled equipment is installed in a
crawl space or an attic, the carbon monoxide detector may be installed on the
next adjacent habitable floor level. Such detector may be a battery operated
carbon monoxide detector with an alarm and shall be installed in compliance in
compliance with the most current edition of NFPA 720, NFPA 70 and the
Massachusetts State Building Code.

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Rudy

Unfortunately

There is no such thing as a low level, UL-2034 approved alarm.

UL requires that an alarm never display/alarm below 30ppm nor alarm between 30ppm - 70ppm although it can display.

Since UL does not require any degree of accuracy of the display, however, that doesn't help much either.

The GRI report on the Performance and Reliability of CO alarms noted that the digital readouts seems to be displaying random numbers....

Rudy

> The NSI 3000 low level CO Monitor exceeds the UL

> 2034 rating.

>

> The screen will show 5ppm and

> sound the alarm at 15ppm after it has measured

> 15ppm for 15 minutes. It is only sold to

> contractors.

>

> www.nationalcomfortinstitute.com

Rudy

OK

Odd thing is that if it 'exceeds' the requirements of UL 2034, then it is not 'approved'....

go figure