S500 NOx Plus Kit: O2, CO, CO2, NO, NOx, Combustion Efficiency, Excess Air, Draft, Pressure, Temperature, Calculations for High Efficiency and Condensing Systems, 12 inch Probe with 5' Hose, and Hard Plastic Carrying Case. Includes QR Code Smartphone Apps, Bluetooth, and Wireless Bluetooth Printer
NOx Kit - with Bluetooth and wireless printer
1112 F (600 C) max temperature
Includes 12-inch probe and 5-inch dual hose
O2, CO, CO2, NO, NOx