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 Smoke tester testo 308 Soot pump holder Flue gas probe length 300 mm, Ø 8 mm, Tmax. 500 °C Basic system case with double floor for instrument, probes and further accessories