"The most powerful handheld BIOGAS ANALYZER. Ideally suited for solid waste disposal, Digesters plus Waste to Energy Engine Tuning Simple operation,Compact & Rugged,Easy Data Handling,Low ownership cost. For solid waste disposal and anaerobic digesters, the OPTIMA 7 measures methane, carbon dioxide, hydrogen sulfide, oxygen, plus pressure, flow and temperature. It can also be outfitted for the tuning of WTE engines, whether on biogas or natural gas to measure carbon monoxide and NOx. Fast and easy to use intuitive menus and function buttons Large, color back-lit display with ZOOM feature for viewing in any condition Customizable screen settings Durable and dirt resistant keypad High energy Li-Ion battery provides up to 8 hours or operation Large 16,000 measurements internal memory Integrated SD card reader for additional data storage and easy data handling Gas sample preparation with large condensate separator with Teflon filter Pressure, flow, and temperature measurements"