Draeger Petroleum Hydrocarbons Short Term Gas Detector Tubes. Options:

Petroleum Hydrocarbons Detector Tubes 10/a
P/N 8101691
Measuring Range: 10 - 300 ppm
(10 tubes, 10 tests per box)

Petroleum Hydrocarbons Detector Tubes 100/a
P/N 6730201
Measuring Range: 100 - 2,500 ppm
(10 tubes, 10 tests per box)