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The Single Substance Test Cards are FDA approved home test kits that will test for the qualitative detection of THC.
This test tests at the same levels as a laboratory test. The cut-off level for the test is 50 ng/ml, the same as used in the labs for DOT Tests.
The Home Test kits are 98% accurate for testing your system for toxins.
Keep test strips in sealed pouches until ready for use.
Directions for use:
Two lines = negative test result. One line = positive test result.
Single Drug Test Strips – Pissing on the problem of random drug testing