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.


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.




The Aico devices with a display will show lower levels (above 10ppm) and
show pre-triggering with a flashing LED and display icon before the
audio alarm is triggered.

The audio alarm will trigger after a certain time based on the
concentration of CO2 although the visual pre-trigger indication is
immediate.

After approx 70 minutes at a concentration of 40 to 80 ppm
After approx 18 minutes at a concentration of 80 to 150 ppm
After approx 40 seconds at a concentration greater than 150 ppm


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