Radiation meter that allows you to measure average daily and weekly values, m is the accumulated value throughout the year. Thanks to its simple and lightweight design, it can be placed at various points in the home or factory to measure radon concentrations a l air. Alpha spectrometry as m collection of Rn. Selection of different measurement intervals. Value m the maximum on screen: 9999 Bq/m3. Value m measured maximum: 35,000 Bq/m3. It runs on 3 AAA batteries. Dimensions: 12x6.9x2.25 cm.