Exhaust gas analyzer BM 7777 is an analyzer for control of exhaust gases from PetrolCNGLP engines.It is highly accurate in measuring CO,CO2,HCCapable of checking Bharat stage 1 to 5 and beyond ,O2 and NOx. It is an ideal option for automobile emission diagnostics, Freedom to use any printer or Camera with the machine, There is no button to operate the machine, only mouse and keyboard, All standard accessories like pipe, Probe, RPM Cord, Oil Temp Cord, Webcam, Keyboard mouse and LED monitor.