Description
The THC Multilevel Test 3 Levels is a rapid urine test for the indicative assessment of cannabis metabolites (THC-COOH) in urine – with three detection levels. Unlike a classic screening test that only shows “positive/negative”, this test helps to classify the result into three indicative ranges.
The key points at a glance:
- Test cassette with 3 cut-offs: 25 / 50 / 150 ng/ml
- Reacts to THC-COOH, the cannabis metabolite in urine
- Result after 3–5 minutes
- Helpful for monitoring & interpretation between several test points, for orientation purposes
- Discreet and free shipping from Switzerland
How to use the THC Multilevel Test 3 Levels – step by step
- Remove the test cassette and the pipette from the packaging.
- Draw up a small amount of urine using the supplied pipette.
- Place the specified number of drops into the sample well of the cassette.
- Place the test cassette on a flat, clean surface.
- The result can be read after 5 minutes.
Result interpretation
The interpretation of the test field is straightforward and is based on the appearance of the lines:
- Positive result:
If only the red control line (C) appears and the test field (T) remains blank or white,
this indicates a positive result. - Negative result:
If both the control line (C) and the test line (T) are visible as red lines,
no THC was detected, or the concentration is below the detection limit. - Invalid test:
If the control line (C) does not appear at all, the result cannot be evaluated.
In this case, the analysis must be repeated with a new test cassette.
What does “Multilevel” mean with this 3-level test?
This product shows three separate THC cut-off values in one test: 25 ng/ml, 50 ng/ml and 150 ng/ml.
Instead of only seeing “positive/negative”, the results can be classified into three indicative ranges – especially useful when comparing several test points to better understand a possible change over time.
Detection levels, cut-off values: 25 / 50 / 150 ng/ml
A cut-off is the defined threshold from which a screening test is interpreted as
“positive”. The lower the cut-off, the more sensitive
the test is to lower concentrations. The higher the cut-off, the more selective the test is.
| Level | Cut-off | Indicative classification |
|---|---|---|
| Level 1 | 25 ng/ml | Very sensitive – may also detect lower concentrations |
| Level 2 | 50 ng/ml | Common international screening standard |
| Level 3 | 150 ng/ml | More selective – tends to react at higher concentrations |
Guidance for interpreting the 3 levels, for orientation purposes
The following examples are not a definitive assessment, but typical screening classifications. Individual factors such as metabolism,
consumption pattern and sample dilution may vary considerably.
Level 1 (25 ng/ml) positive
- Indication of low or decreasing THC-COOH concentrations
- Possible residual traces after past cannabis use
Level 2 (50 ng/ml) positive
50 ng/ml is a cut-off frequently used internationally for screening.
- Indication of medium THC-COOH concentrations
- Possible recent or regular cannabis use
Level 3 (150 ng/ml) positive
- Indication of clearly elevated THC-COOH concentrations
- In follow-up testing, this may indicate a change compared with previous results
Rule of thumb:
low, medium or high within the framework of the three cut-offs.
Indicative detectability of THC in urine
Rapid urine tests do not detect psychoactive THC itself, but the metabolite THC-COOH. Detectability depends, among other things, on frequency of use, the cut-off and individual factors.
| Use pattern | Indicative detectability* |
|---|---|
| Occasional / single use | often a few days, e.g. approx. 2–3 days |
| Regular use | often several days up to approx. 1–2 weeks, e.g. approx. 5–10 days |
| Heavy / chronic use | several weeks possible, e.g. approx. 14–30 days or longer |
Key facts THC Multilevel Test 3 Levels
| Test type | Drop test with test cassette, qualitative screening test |
| Target analyte | THC-COOH, main metabolite of cannabis |
| Cut-offs | 25 ng/ml + 50 ng/ml + 150 ng/ml |
| Result time | approx. 3–5 minutes |
| Scope of delivery | 1 test cassette & instructions |
| Storage | Store in a dry place at room temperature according to the package insert |
3 cut-offs in one test
Discreet shipping from Switzerland
Frequently asked questions about the THC Multilevel Test 3 Levels (FAQ)
What is included in the test kit?
Each level can be read separately on the test cassette.
Can I calculate the “THC amount” from the Multilevel result?
It is not a quantitative measurement. For binding values, a
laboratory analysis is required.
Why is 50 ng/ml so often considered a “standard”?
for THC-COOH in urine. The Multilevel test adds a more sensitive level (25)
and a more selective level (150).
Which combinations are typical?
above higher thresholds. Important: this is not a statement about dose and depends
strongly on individual factors and the sample.
What does a very faint test line (T) mean?
negative, provided the control line (C) is visible.
Line intensity is not suitable for estimating quantities.
Is the Multilevel test suitable for legal or medical decisions?
professional, legal or road traffic-related questions, a
confirmation analysis in a qualified laboratory is required.
What exactly does the test measure – THC or something else?
THC-COOH. This is formed during the metabolism of cannabis and is excreted
in urine.
Technical background & sources
The content is based on publicly available technical sources (metabolism, detection times, road traffic context) as well as the respective manufacturer IFU (instructions for use). It is intended for general interpretation (screening, cut-off, detection times) and does not replace individual advice.
- EUDA, formerly EMCDDA – Drug profile: Cannabis (pharmacology, metabolism, classification)
- EUDA – European Drug Report 2025: Cannabis (situation, trends, risks)
- Huestis MA – Human cannabinoid pharmacokinetics (pharmacokinetics, metabolites, detection)
- Verstraete AG – Detection times of drugs of abuse (detection times in blood/urine/saliva – overview)
- FOPH – Report on THC limits in road traffic (PDF) (Swiss context, zero tolerance & limits)
- Fedlex – FEDRO Ordinance (legal framework Switzerland / road traffic)
- Addiction Switzerland – Cannabis: legal framework (Swiss classification, road traffic, general framework)
- Manufacturer IFU (instructions for use) of the respective test strip variant (cut-off, procedure, reading time, cross-reactions).
Important note: This THC Multilevel Test 3 Levels is intended for indicative assessment within the scope of screening. It does not replace medical, therapeutic or legally binding clarification. For confirmed results, an analysis in a
qualified laboratory is required.
Content editorially reviewed and updated on: 17.02.2026 – Toxcontrol Diagnostik
