testo 330-2 LL (O2 and COH2) flue gas set for service technicians and inspectors, incl.BLUETOOTH, rech. battery and calibration protocol; mains unit 100-240 V for mains operation or charging the rechargeable battery in the instrument; combustion air temperature probe, length 190 mm; Testo BLUETOOTH printer with mains unit; easyheat software testo 330 for PC; USB connection cable, instrument-PC; flue gas probe, length 300 mm, Ø 8 mm, Tmax. 500 °C; fine pressure probe; capillary hoses; surface probe angled 90 °C; connection cable surface probe; straight Pitot tube; heating check retrofit CD; basic system case with double floor for instrument, probes and further accessories