Advanced portable odorant analyzer for field detection and measurement of mercaptan-based odorants. Electrochemical sensor technology with rapid response time and high accuracy. Ideal for natural gas utilities, pipeline operators, and odorant service providers. Detects tetrahydrothiophene (THT) and tert-butyl mercaptan (TBM) odorants. Durable, weather-resistant design for outdoor field applications. Essential tool for odorant fade monitoring, quality control, and regulatory compliance verification.