Smoke Check is a simple one-step urine test card for detection of tobacco or nicotine usage. Smoke Check test cards are designed to detect the metabolite of Nicotine, Which can be found in all body fluids 30 to75 days after Nicotine usage because it is an oil base substance that combines with your fatty tissue..
Both the test line (T) and the control line (C) should appear in the
viewing window. The control line (C) indicates proper performance of
the device. The test line intensity may be weaker or stronger than
that of the control line.
Only one colored line appears in the control line region (C). No
colored line appears in the test line region (T).
No colored line appears in the control region. Under no circumstances
should a positive result be identified unless the control line (C)
appears in the viewing area. If the control line (C) does not appear,
the test result is invalid and the assay should be repeated