The Dwyer 920 Smoke Gage Kit is an easy-to-use device which enables users to quickly balance maximum CO2 with minimum smoke for clean, efficient combustion. Simply take and actual sample of the smoke being tested and compare it to the standards on the Smoke Chart included. Just 10 full strokes of the pump produce and accurate test sample. Complete testing instructions are included.
– Conforms with ASTM D-2156-XX standards for testing smoke density in flue gases from burning distillate fuels