Exhaust gas analyzer NHA-406/506 features: multi-mode dual-idling detect executable automobile exhaust HC, CO, CO2, O2, NO concentration; high brightness large-screen LCD display, full Chinese menu operation; can be compressed multi-fuel natural gas vehicles (CNG), liquefied petroleum gas (LPG), ethanol and other testing; with license plate input, 200 sets of data storage, access and RS - 232 digital communication interface; standard inductive clamp speed measurement; standard warm-up 10 minutes , with five minutes fast preheat emergency detection; meet the national standard ISO 3930 and the international OIML R99 I level accuracy. Exhaust gas analyzer NHA-406/506 Technical Data: Measuring range: Projects range HC: 0 ~ 9999 × 10-6 (n-hexane equivalent) CO: 0 ~ 10 × 10-2 (%) CO2: 0 ~ 18 × 10- 2 (%) O2: 0 ~ 25 × 10-2 (%) NO 0 ~ 5,000 × 10-6 (NHA-406 type is not supported) Indication error: Project absolute error relative error HC ± 12 × 10-6 ± 5% CO ± 0.06 × 10-2 (% ± 5% CO2 ± 0.5 × 10-2 (%) ± 5% O2 ± 0.1 × 10-2 (%) ± 5% NO ± 25 × 10-6 (NHA -406 type is not supported) ± 4% Warm-up time: 10min (5min emergency detection can be preheated) Response time: less than 10 seconds, O2 is not more than 12 seconds, NO is not more than 15 seconds Power: AC220V ± 10% 50Hz ± 1Hz or DC12V (optional car power inverter) Operating temperature: + 5 ℃ ~ + 40 ℃ Humidity: 5% to 95% [non-condensing] Weight: 6.0Kg Dimensions: 260mm (width) × 180mm (high) × 450mm (depth)