Huberg METREX2 Portable Methane & Propane Leak Detector Rental Methane (CH4) and Propane (C3H8) measurement. Three measurement ranges (PPM, %Vol, %LEL). Up to 8 hours battery life (rechargeable NiMH batteries). Built-in sampling pump. Acoustic and visual alarms. Internal memory for data logging. Bluetooth communication. $90 View Details Quote Request