Double natural ventilation wet bulb probe and temperature probe (dry bulb). Probe stem Ø 14 mm, length 110 mm. Cable length 2 metres. Equipped with double SICRAM module, spare cotton wick and 50 cc distilled water. Measuring range +4 °C…+80 °C. (On request 2 temperature ACCREDIA certificates at 4 fixed points, one for each probe).