On 07/01/2021 23:15, Robin wrote:
On 07/01/2021 18:23, David wrote:
We have a mains powered CO tester in the same room as our log burner.

However I am wondering if there is a sensitive portable CO tester
which is
good.

https://www.amazon.co.uk/Handheld-Mo...ector-0%EF%BD%
9E1000ppm/dp/B08CSLLXVC/
is an example after a quick search.

The main question is if these detectors are more accurate/sensitive than
the ones designed for permanent installation.

Any recommendations based on experience most welcome.

Probably about the same.

We have a FireAngel with a digital display which happily sits there
showing anything 20-odd ppm when others indicate nothing because they
are designed to start /sounding/ warnings only at levels above 50. Model
is no longer available but I think it likely current digital ones from
FireAngel and from other makers (eg Kidde) with digital displays would
do likewise.

Mine is a FireAngel CO-828 and is very loud if you test it. I hardly
ever see a reading on it in normal use of the woodburner and have to
deliberately waft smoke at it to see a reading. I think mine will
indicate in multiples of 5ppm but can't be sure. Most of the time it
sits at 0. I have to deliberately provoke with smoke it for a full test.

--
Regards,
Martin Brown