The SENSIT GAS•TRAC® LZ-30 is a small methane-specific leak detector that, utilizing TDLAS (tunable diode laser absorption spectroscopy) technology, produces instantaneous and accurate responses to the presence of methane gas at distances up to 100 feet. Due to its extended detection range, the LZ-30 is perfect for hard to reach areas, eliminating the need to directly access the gas plume, climb to elevated areas, access fenced-in property, or other potentially dangerous situations.