External Halogen-quenched, uncompensated Geiger Muller tube with a thin mica window, 1.4-2.0 mg/cm2 areal density. Effective diameter of window is 45 mm (1.75 in.). Radiation symbol on probe head label marks the center of the detector.
The RAP-RS2 fits the EXP Models (SN#s 27300 and higher)
Anodized aluminum housing
RAP-RS2 Approx. 10.7 X 1 in. (272 X 25 mm) Dia : 2.75 in. (70 mm)
Black foam grip
RAP-RS2: Approx. 9.6 oz. (272 g) w/o cable