Carbon monoxide alarm recall
In voluntary cooperation with the Swiss Federal Inspectorate for Heavy Current Abus Schweiz AG recalls the carbon monoxide alarm COWM300 with production date "April 2015". It may happen that the warning detector does not work properly.
Note the batch number on the back
On the back of the warning alarm is a sticker with the batch number (see illustration). Devices marked "F4" after the three diamonds may be affected by the problem, Abus writes.