E500 Residential Combustion Efficiency Analyzer

Entry-Level, Economical, and Easy to Use Combustion Gas Analyzer for Residential HVAC Installation & Maintenance.
Six–Tools–In–One:
– Combustion Analyzer for O2, CO, CO2 (Calculates Combustion Efficiency, Excess Air, Losses, CO Air Free)
– Ambient Room Air Carbon Monoxide (CO) Leak Detector
– Draft Meter (Negative & Positive Draft)
– Cracked Heat Exchanger Test Included
– Built–In Differential Digital Pressure Manometer
– Built–in Differential Thermometer