E Instruments International

Model BTU900-C is suited for boiler and burner setups, servicing and maintenance. Field-replaceable sensors ease diagnostics and replacements to eliminate downtime. Features include O2, CO, CO2, CXHY sensors; rechargeable battery and AC charger; built-in manometer and thermometer (ambient and flue gas); built in carbon dioxide leak detector; and data for 10 fuels/oils standard.