Gastec standard detector tubes are provided in separate
box. All Gastec detector tubes are provided in boxes. Each box contains
10 detector tubes of the same kind. A box of twin tubes contains
5 Analyzer (Detector) tubes, 5 Primary (Pretreatment) tubes which
a single rubber connector and provides five test. Each box also
contains the instruction sheet for the detector tube and ten numbered
adhesive labels. Each of adhesive labels may be separated and put
on the detector tube for taking notes of measurement. Major information
about the detector tube is printed on the label on the box.
