 |  | | GENERAL FEATURES |  |  | | Range: | 0,5 - 5,0 - 50 mR/h; |  |  | | Supply: | 9 V alcaline battery, 2000 hour lifetime |  |  | | Weight: | 0,22 kg (0.48 lb) |  |  | | Dimension (WxHxD): | 70x210x48mm (2.75x8.25x1.87 in) |  |  | |  |  | | SENSITIVITY |  |  | | α: | detected down to 2,5 MeV, with typical detectionefficiency greater than 80% at 3,5 MeV |  |  | | ß: | detected at 150 keV with 75% typical detection efficiency |  |  | | Gamma and X rays: | detected down to 10 keV through the end window and to 40 keV through the case |  |  | |