GK CHECK is a practical, easy‑to‑use test sticker that can detect the presence of two different substances.
The test is quick, convenient, and gives reliable results directly from a drop of your drink.
Key features:
– Simple detection of two types of substances, clearly separated
– Easy-to-read results: colour change indicates a positive reaction
– Compact size: fits easily into a wallet or phone case
– Fast reaction time: results appear in under a minute
The test surface is designed so that reactions to each substance are clearly distinguishable and easy to interpret. Ideal for quick checks when safety matters.
