The Sensistor XRS9012 Hydrogen Leak Detector is a fast, reliable, and robust instrument for utility leak detection. The detector offers a highly sensitive and flexible leak detection system in a heavy-duty, smart, and ergonomically designed package. The unique method involving the use of inexpensive forming gases (5% hydrogen and 95% nitrogen) as tracer gas, combines unparalleled locating properties with user-friendly technology, low costs, and minimal service requirements.