Inventors:
Marsha Walker - Boulder CO, US
Taro P. Smith - Boulder CO, US
International Classification:
G01N 27/00
Abstract:
A sensor and testing methodology for detecting and measuring the level of stimulants in a liquid is disclosed. The sensor is compact in form, approximately the size and shape of a fountain pen, and may be conveniently transported in a user's pocket or purse. The device includes a battery, a test strip having an electrical conductor coupled to an electrode and an indicator for providing a visual indication of the presence and level of a stimulant in a liquid. In use, the test strip is exposed to the liquid being tested, and the flow of electrons between the conductor and the electrode is measured and calibrated to indicate the type and concentration level of stimulant present.