1.  Indicated Use : Low-energy gamma detection
2.  Detector Type : YSO (Yttrium Oxyorthosilicate) scintillator, 2.5 cm (1 in.) dia. x 1 mm (0.04 in.) thick
3.  Window  : 1.2 mg/cm²
4.  Window Area :  Active: 5 cm² (0.8 in²), Open: 5 cm² (0.8 in²)
5.  Typical Background (10 µR/hr field) : < 250 cpm
6.  Energy Response : Energy dependent
7.  Photomultiplier Tube : 2.9 cm (1.125 in.) diameter
8.  Operating Voltage :  500 to 1200 V (typical)
9.  Size (D x L) : 5.1 x 17.8 cm (2 x 7 in)
10.  Weight  : 0.5 kg (1 lb)