As a chimney sweep, heating engineer or service technician you are required by law to abide to the rules and regulations (like the 1. BlmSchV – Ord. 1 of the Federal Immission Control Ordinance) which apply to your field and profession. You can rely on the testo 380 to help you to carry out your daily tasks because it is certified for use with solid, liquid and gaseous fuels as well as for the threshold values 1 and 2 according to 1. BlmSchV. The easy-to-use particle counter can take you through the preprogrammed measuring programm of the BlmSchV and save you heaps of time and hassle.