incl. Bluetooth, rech. battery and calibration protocol 100-240 V mains unit for mains operation or charging the rechargeable battery in the instrument Combustion air temperature probe, immersion depth 190 mm Hose connection set for separate gas pressure measurement testo Bluetooth printer with mains unit Basic system case flat Flue gas probe length 300 mm, Ø 8 mm, Tmax. 500 °C