Base Model Description Long Life O2 sensor (with 3 - 4 years life expectation): 0 - 21% CO (H2 compensated) sensor: 0 - 10,000 ppm (short interval reading overload 20,000 ppm) Calculated CO2 or optional NDIR measured CO2 (OPTION 64618 or 65648) Large fuel type list + user definable fuel types Differential Temperature Measurement Differential Pressure Measurement and Draft Measurement Modern, slim line enclosure with fixing magnets Dirt resistant - illuminated key pad Super bright, color 4.0” TFT display with LED backlight (customizable and zoom function) CO protection using 2nd pump (protects the CO sensor against unwanted high CO concentrations) High energy Li-lon battery (for up 20 hours operation time) Analyzer and probe leak test (allows you to check analyzer and probe for leaks) Combustion and Emission calculations Flue Gas and Ambient Air Temperature measurement Menu guided software and function keys 100 - 240 Volt Battery charger Robust, stainless steel gas connectors DUAL Bluetooth module for wireless data transfer to PC/Notebook andMRU4u App on Smartphones or Tablet (iOS and Android) Mini-USB interface and USB cable, SD card reader and SD Card (export function to Excel) WLAN IRDA interface for high speed infrared printer (printer not included) Integrated, backlit condensate separator with PTFE filter and additional spare filter Condensate separator with WATER STOP FILTER and Internal flow monitoring and alarm For More Information Visit Here: https://mrulab.com/collections/combustion-analyzer/products/ampro-2000-analyzer-set-including-o2-co-no-and-co2-1-with-ir-printer