- Up to Four Gas Sensors：O2, CO, NO, NOx
- Low NOx Capable with 0.1ppm resolution & high accuracy
- Gas Sensors are Pre-Calibrated & Field Replaceable
- Color Touch Screen with Graphing
- User Customized Display Screen & Print-Out Content
- Apps and PC software for Automatic Data Saving and Remote Control
- Efficiency, Excess Air, & CO2 Calculations
- Remote Wireless Printer (Optional)
- Stack Gas & Air Temperature Measurements
- Draft & Differential Pressure Measurements
- External Water Trap for Condensate Removal
- Rechargeable Lithium Ion Battery Pack
- Unbreakable Metal Hose Connectors
- PC Software Package with USB & Bluetooth Communications